Re: [PHP] Random 404 screens
On Sat, 9 Feb 2013, Jim Giner wrote: Lately, my web pages are giving me some problems. Once a day or so one or more of my pages/scripts will give me a 404 error page saying my web page has timed out. Problem is that the page was just displayed. I click on a link, the page shows up, I click on a button on it to trigger some activity and voila! An error. I hit refresh and my page is back and things work ok. Since someone mentioned network issues, I will ask this question. Is it actually a 404 page? That is to say, does the string 404 actually appear in the error document? If it does, then this would rule out your home network, as 404 is a response code returned by the webserver. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Some date() oddities
On Tue, 8 Jan 2013, Arno Kuhl wrote: Starting with a unix timestamp for 31 December 2012 13:12:12 (which is 1356952332) I calculate a week number: $ux_date = 1356952332; $weeknumber = date(W, $ux_date); // returns 01 instead of 52 I'm not that familiar with date, I tend to use strftime myself (no idea why there's both). Sounds like date's W is equivalent to strftime's %V which does indeed return 01 for this date as there's at least 4 days of the new year in that particular week. Both %U and %W seem to return what you want, using strftime. I'd guess that date would also have flags for these. Cheers, Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Boolean type forced on string assignment inside if statement
On Thu, 3 Jan 2013, Jim Giner wrote:
The only time I use a single '=' symbol in an if statement is when I forget
to use two of them! Must be my old school, old languages habits but this
style of programming reminds me of the days when we used to pack empty spaces
in assembler code with constants or byte-size vars in order to save memory
back when memory was the most precious resource one had.
The only time I'd consider doing it is if the next thing I was going to do
would be check to see if the assignment itself worked. for example:
if (file_handle = fopen(foo, r)) {
...
}
Geoff.
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Re: [PHP] Wrong time being displayed by PHP!
On Wed, 17 Oct 2012, Richard S. Crawford wrote: I've confirmed that the server is set to PDT. The value of date.timezone in php.ini is America/Los_Angeles, which should be (currently) -8 hours from UTC, but it looks like the PDT offset is only set to -4. Does that even make sense? Actually, PDT is UTC minus 7, not 8. But that's not the point. I know people are pointing at a configuration issue, and it may well be. But the fact that PHP seems to have the correct idea for what UTC is suggests that perhaps either PHP or the (presumably) C routines that it uses may be at least contributing to this. This is not the first time I've seen strangeness with default timezones, and I guess there's a reason why using them generates a warning. Best to deliberately set your timezone. Now if it still does it when you actually set it to America/Los_Angeles then we've got a bigger problem. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP Time
On Mon, 2 Jul 2012, Rob Weissenburger wrote: I know php time() gives the current unix time which you can format out to a normal date and time. Is there a way to format a specific date and time back to unix time? mktime() and strtotime() will do it, depending on the form your time is in. There's probably others. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] slicing and dicing strings
On Wed, 27 Jun 2012, tamouse mailing lists wrote: RTFM with no hint of where to look is a problem. But the dictum of Read here in the manual will surely be the best thing. You will then know where to look for future questions. Personally, I've got better things to do with my time than spend it committing the syntax and semantics of every single PHP function to memory. I nearly always have the php.net front page with its function search open in a browser whenever I'm writing something more than a few lines. The function search seriously rocks. Even if I can't remember which string function I want, I can search for *any* string function and I'll get the list of all of them, along with a quick summary to help me find the one I want. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] regexp novice
Stuart Dallas stu...@3ft9.com wrote: On 18 May 2012, at 14:50, Jim Giner wrote: Daft is a little harsh. :) 00:40 is just not a time value that is generally accepted. It may appear harsh, but as far as I'm concerned it is daft to make assumptions like that. You've essentially disallowed 12:nn am, but allowed 1:nn am, 2:nn am, 3:nn am, etc, because you're not validating the data in a non-ambiguous way. I have no idea what you're developing, but you're making a big assumption about the data that you're getting, which may appear reasonable to you, but to me it's daft. Nothing personal, just my opinion, which is all I have to offer. Unless I've missed something, he hasn't disallowed 12:nn am, only 00:nn. If you're going to only accept 12-hour input, this is the right thing to do. 00:nn is not a valid 12-hour representation - only times from 1:nn to 12:nn are acceptable. If you were to accept 00:nn, you'd have to also accept 13:nn-23:nn as well, for consistancy. Granted, not specifying am or pm adds a layer of ambiguity, but maybe that's not relevant for this query. For example, maybe there's also a select field that has am and pm as options. As it appears that accepting only 12-hour input is part of the brief, Jim is IMHO doing the right thing. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] strftime silliness
On Wed, 10 Apr 2012, Tim Streater wrote: I want to format a date/time using a 12 hour representation of the time part. I can do this with, say, %d %b %Y %l:%M %p, where the first time format specifier is the lower-case L. But, this gives me a leading space in the case that the hour is less than 12. I don't want this space. Anyone know of an simple way to avoid it? There appears to be no specifier to do this. Of course, I can call strftime twice, once for the date portion and once for the time portion, trimming the latter, but that seems clumsy. You can use %-l to achieve this. You could also use %-I as this will also drop leading zeros if present. I forget where I read about this. I'm almost certain that it was *not* in any PHP documentation. HTH, Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] basic captcha
On Fri, 17 Feb 2012, Ashley Sheridan wrote: I would avoid making a user type in something they see in a picture, as you've just succeeded in pissing off a bunch of blind people. Thank you! Glad someone pointed this out so I didn't have to. And if you use a system like Recaptcha which has an audio option, you've still locked out deafblind users. Also, avoid relying on javascript. It can be turned off, disabled, blocked and sometimes isn't available at all, such as with some speech/Braille browsers. Or lynx. Yes I'm a blind person, but even a person who isn't may want to use it quickly from a shell to get something done. One popular route is to ask a question that only a human could answer. I use this method on the contact page of my site. I just ask a question such as Multiply the number of heads a person has by the number of legs on 2 dogs. It's easy for a human, but requires context, something a bot can't do effectively. Since the person was looking for a ready-made solution, I'd like to recommend TextCaptcha.com. It claims to have 180,243,205 easy questions, and even has an article on ways to avoid needing a CAPTCHA in the first place. I once (and only once) struck a test like this on a New Zealand government website. I nearly died of shock. And I was able to use it with lynx with no problems at all. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Update mailing list docs - How to unsubscribe?
On Mon, 23 Jan 2012, Matty Sarro wrote: I have been trying to unsubscribe from this list. I've gone through the directions at http://www.ezmlm.org/ezman/ezman1.html as suggested by http://us.php.net/mailing-lists.php. They don't seem to apply for these lists as written (the method listed for unsubscribing involves sending an email to mailinglist-unsubscr...@example.org, which in this case would be mailinglist-unsubscr...@lists.php.net which sends back a lovely invalid email address response). list-unsubscribe: mailto:php-general-unsubscr...@lists.php.net Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Sniping on the List
Hi, Apologies if this has moved on, I've not read all my mail from the last day and a half. On Mon, 21 Nov 2011, Tedd Sperling wrote: Let's consider this -- you are in a different time zone than me, right? You said UTC and mine is America New York. As such you claim is that your strtotime() function will return a different result for you as compared to me because of the time zone differences, right? Only some of the time. It depends on the input. If so, then tell me why I can take both sites (your and mine) and click the Submit buttons at the same time and the forms will report back the exact same number of elapsed seconds. Try it (you got to be quick): The timezone affects two things, the input and the output. If your input is absolute and not timezone dependent, both scripts will output the same seconds calculation. But if it is affected by timezone, then the seconds count will be different. Here's an example from a previous message. The string 1 January 1970 00:00:00 is timezone dependent, as it is midnight according to the particular timezone. Output from your copy: String Given: 1 January 1970 00:00:00 Seconds Computed from String: 18000 Output from my copy: String Given: 1 January 1970 00:00:00 Seconds Computed from String: 0 This is because the number of seconds (aka the Unix Timestamp) is *not* affected by timezones - it's the number of seconds since 1 January 1970 00:00:00 UTC. This is why it's 0 on my server and 18000 on yours, as midnight was 5 hours later in New York. But if you enter a string like now, you'll get the current time with the same timestamp from both scripts. String Given: now Seconds Computed from String: 1322033486 Here's where the output side comes in. The various date display functions will output according to the selected timezone, or the system default if none is selected. So this will display differently on your server and on mine. Lets use the value of 'now' above to demonstrate: $ php -r 'date_default_timezone_set (America/New_York); echo date (r, 1322033486);' Wed, 23 Nov 2011 02:31:26 -0500 php -r 'date_default_timezone_set (UTC); echo date (r, 1322033486);' Wed, 23 Nov 2011 07:31:26 + Same input, different output. Now if you combine these two factors, it explains all the results you see. If you use strings like today or 1 January 1970 00:00:00, the scripts will print the same date (and time if you asked it to), but they aren't actually the same, as one is 5 hours behind the other. But if you use an absolute time like now or 1 January 1970 00:00:00 + (which specifies the timezone), the scripts will print different times based on the timezone. Now, to the point under debate. Since values like 0 and null are absolute rather than relative, the output will vary depending on which timezone is in use. $ php -r 'date_default_timezone_set (UTC); echo date (r, null);' Thu, 01 Jan 1970 00:00:00 + $ php -r 'date_default_timezone_set (America/New_York); echo date (r, null);' Wed, 31 Dec 1969 19:00:00 -0500 Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Sniping on the List
On Sat, 19 Nov 2011, Tedd Sperling wrote: My observations are demonstrated here: http://www.webbytedd.com//strtotime/index.php this code would IMHO be more useful if it also displayed time, not just date. It's also not clear what timezone you're using, as it's not set as far as I can see. Please note that regardless of time zone, the strtotime() function works (or at least it does for me) such that: If you enter '-1', the function will report back Todays Date with current seconds. Note there is no difference between entering 'Today' or '-1'. This is not what your code shows. String Given: -1 Seconds Computed from String: 1321805103 Date from Seconds Computed: 20 November, 2011 : Sunday ___ Current Time (seconds): 1321819503 Current Date: 20 November, 2011 : Sunday This is a difference of 14400 seconds or 4 hours. String Given: today Seconds Computed from String: 1321765200 Date from Seconds Computed: 20 November, 2011 : Sunday ___ Current Time (seconds): 1321819877 Current Date: 20 November, 2011 : Sunday This is a much larger difference. 'today' is meant to return the same as 'today 00:00:00'. I know it used not to, it was a PHP bug awhile back... which begs the question, which PHP version are you using? If you enter '0', the function will report back December, 31, 1969. You'll also notice that the value of seconds computed from string is blank (i.e. not 0). This is because strtotime() doesn't know what to do with a value of '0'. Whether it should or not is probably a phillosophical debate. If you enter nothing (i.e., null), then it reports back December, 31, 1969. It does, but we dont' know exactly when this is because your script doesn't show time. It could be actually returning a 0 timestamp. We can force your script to show us what 0 time is according to its timezone by entering an absolute date including UTC offset. String Given: 1 January 1970 + Seconds Computed from String: 0 Date from Seconds Computed: 31 December, 1969 : Wednesday ___ So your script shows 31/12/1969 for the epoch, so we dont' know if the null value is the epoch or before. To further prove my point, witness the number of seconds calculated from 1 January 1970 in your script's timezone: String Given: 1 January 1970 Seconds Computed from String: 18000 Date from Seconds Computed: 1 January, 1970 : Thursday ___ This means your script is using a timezone of UTC -0500 (US Eastern). So any time within the first 5 hours of the epoch will show as being in 1969. To avoid this, explicitly set your script to use UTC. Or use US Eastern but be up front about the fact that your'e doing this. It's clear (and by definition) that unix zero time (i.e., 00:00:00) happened in 1970. It's also clear that time before unix zero happened before 1970 (i.e., 'December 31, 1969'). As such, null (and not the string 'null' as stated my someone else, duh) should come back as undefined OR December, 31, 1969. It doesn't for me, using either PHP 5.2.6 or 5.3.3. php -r 'echo date (r, strtotime ());' Thu, 01 Jan 1970 00:00:00 + Furthermore, the string '-1' should default to '-1 second' instead of being the same as if I entered 'Today'. Apart from the fact that for me at least, strtotime (today) returns today at midnight, whereas strtotime (-1) seems to return something else (time() + 3600 on boxes set to UTC, time() + 10800 on my box set to local time in Israel), strtotime is meant to turn textual representations of time into a unix timestamp. Surely the meaning of -1 is at the very least ambiguous, and the fact that it returns anything is surprising. Now, where are my observations wrong? The code is shown in the demo. To summarise, your observations are wrong because they do not take timezone into account and do not show the time, only the date. And some of your observations as given above do not match what your script outputs. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Parsing the From field
On Sat, 19 Nov 2011, Ron Piggott wrote: Also the formatting of the from field changes in various e-mail programs: From: Ron Piggott ron.pigg...@actsministries.org From: Ron Piggott ron.pigg...@actsministries.org From: ron.pigg...@actsministries.org From: ron.pigg...@actsministries.org I've also seen: Piggott, Ron ron.pigg...@actsministries.org And that's before you get to people who only use their first name and people who use some kind of alias. I think you did well to abandon this. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Sniping on the List
On Sun, 20 Nov 2011, Tedd Sperling wrote: I appreciate your time and comments. However, you missed the point I was trying to make, which does not have anything to do with timezones. If you copy my code and place it on any server in the world, you'll observe the same results as I did. NO I won't, and timezones do matter. I've copied your code to http://quitelikely.com/~geoff/strtotime/ Sorry if any of the visuals are mangled, I had to massage the script a little to pullin the header and footer, and I downloaded your logo, but I didn't go and dig out your CSS or javascript. This server is set to UTC and uses PHP 5.2.6. Lets skip right to your point. From your script on your server: String Given: null Seconds Computed from String: null Date from Seconds Computed: 31 December, 1969 : Wednesday ___ From the script on my server: String Given: null Seconds Computed from String: null Date from Seconds Computed: 1 January, 1970 : Thursday __ You touched on my point with: You'll also notice that the value of seconds computed from string is blank (i.e. not 0). This is because strtotime() doesn't know what to do with a value of '0'. Whether it should or not is probably a phillosophical debate. But you did not contribute to which side of the debate would you side. I didn't, because the debate was on whether or not NULL == Wednesday, not whether or not strtotime(0) should return 0. I agree there's a good case for it doing so, you could file a bug if you feel strongly about it. My prior opinion was that 0 should return 'Jan 1, 1970'. However, Stuart pointed out a flaw in my code. You see, I was assuming that using the return from strtotime(0) in the getdate() function would return the correct date, but this was a cascade error. As I think I mentioned before, using strtotime at all is the problem, as we are talking about null as a concept, not null the alphabetical string. Since null is nominally a numerical value, we can pass it directly as a timestamp. php -r 'echo date(r, null);' Thu, 01 Jan 1970 00:00:00 + Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Sniping on the List
On Thu, 17 Nov 2011, Tedd Sperling wrote: On Nov 17, 2011, at 11:58 AM, Stuart Dallas wrote: The epoch specifies the exact time that 0 represents. It makes no claims as far as that being the start of anything... defined as the number of seconds elapsed since midnight Coordinated Universal Time (UTC) of Thursday, January 1, 1970 (Unix times are defined, but negative, before that date) [http://en.wikipedia.org/wiki/Unix_time] Good reference to support your point, but strtotime() doesn't qork that way. Yes it does. $ php -r 'echo strtotime (31 Dec 1969 23:59 +);' -60 For example, if you push '-1' though strtotime(-1), you'll get Wednesday only one day a week -- whereas 'null' works every time. Technically I see that as a bug. I believe strtotime(null) should return null, but due to the way type inference works, null is interpreted as 0. The point here being that you're not getting the time at null, you're getting the time at 0. Nope, zero time is absolutely January 1, 1970 00:00:00 -- which was a Thursday. If you pass zero through strtotime(), it reports December 1969 and I claim that to be a bug. Not here it doesn't. $ php -r 'echo date (r, strtotime (zero));' Thu, 01 Jan 1970 00:00:00 + But it might for you (see below). In addition, passing -1 through strtotime() simply returns today, Here it returns a time an hour later than now. $ date -R; php -r 'echo date (r, strtotime (-1));' Thu, 17 Nov 2011 20:41:06 + Thu, 17 Nov 2011 21:41:07 + whereas 'null' returns a date prior to the start of everything and that makes more logical sense to me. but here we hit the crux of the problem. 'strtotime(null)' isn't returning a null timestamp, it's simply returning the value for an inability to convert the string null to a timestamp. Of course, now that I try to reproduce the null == Wednesday result, I find that I can't. Everything comes up as Thu, 01 Jan 1970 00:00:00 + which probably invalidates much of what I've written above. Maybe I'm not running a new enough PHP (latest I have access to is 5.3.3). But if this is the case, this suggests this behaviour changed relatively recently. Anyway, as I was going to say, the correct way to find out what null is is to do something like: echo date (r, null); But this thread has gone through so many twists now that I can't remember if this is where we began or not. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Think I found a PHP bug
On Tue, 15 Nov 2011, Jim Lucas wrote: Also, I recalled something from the early 5.1.0 version that was related to the introduction of the date_timezone_set() function. So, from there I searched Google for php changelog and found the changelog for php v5. Then I searched that document for 'date_' and found that under the 5.1.0 they added the above function. How it is stated, it makes me think that PHP now requires you to call this function prior to any use of other date functions. I cannot find anything in the php manual confirming my last statement. YMMV If you don't use date_default_timezone_set(), it's supposed to use the server timezone. I recalled reading that a notice/warning would be logged if you did this, but like you, I can't find any reference to this now. I've searched my apache error logs and can't find anything there either, which seems to suggest that this in fact is not the case. In case it wasn't obvious in my original post, this worked just fine during UK summer time. It's only since the clocks changed two weeks ago that PHP has been thinking that the server timezone is UTC rather than Europe/London. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Think I found a PHP bug
On Wed, 15 Nov 2011, Tim Streater wrote: I find I need to do this: date_default_timezone_set (@date_default_timezone_get ()); in all my scripts since 5.x.x to avoid rude messages. Apart from the fact that I've not seen the rude messages of which you speak, even though I expected to, this won't help in this case. date_default_timezone_get() is returning the wrong timezone. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Think I found a PHP bug
Hi, A couple of weeks ago, I discovered what I'm pretty sure is a PHP bug. In addition, I looked in the PHP changelog and I haven't seen any mention of a fix for it. I'm writing here because I was wondering if anyone else can confirm it and what to do about it. The bug is that if a server's timezone is set to Europe/London and you don't set an explicit timezone in your script, if it's winter time in the UK, PHP thinks the timezone is UTC instead of Europe/London. Example: First, lets confirm that the system time is in fact set to Europe/London. $ cmp --verbose /etc/localtime /usr/share/zoneinfo/Europe/London $ echo $? 0 Now lets see what PHP thinks it is. $ php -r 'echo date_default_timezone_get();' UTC What about if we set it in the environment? $ export TZ=Europe/London $ php -r 'echo date_default_timezone_get();' Europe/London OK, so we appear to have an issue. But is this just semantics? Well no. consider the following (with TZ once again unset): $ php -r 'echo date (r, strtotime (1 July 2011 12:00 pm' Fri, 01 Jul 2011 12:00:00 + But of course, Europe/London isn't on + in July. $ export TZ=Europe/London $ php -r 'echo date (r, strtotime (1 July 2011 12:00 pm));' Fri, 01 Jul 2011 12:00:00 +0100 The problem comes in when we view times created in one and printed in the other: $ unset TZ $ php -r 'echo strtotime (1 July 2011 12:00 pm);' 1309521600 $ export TZ=Europe/London $ php -r 'echo date (r, 1309521600);' Fri, 01 Jul 2011 13:00:00 +0100 And the opposite: $ export TZ=Europe/London $ php -r 'echo strtotime (1 July 2011 12:00 pm);' 1309518000 $ unset TZ $ php -r 'echo date (r, 1309518000);' Fri, 01 Jul 2011 11:00:00 + This last one is what led me to discover this bug. We use automation software to run our Internet radio station. The playout system is written in C and the web front-end is written in PHP, with the data they work on the only point of commonality between them. The station was set up during the European summer. When the clocks changed, the playout system coped but the PHP front-end was showing everything an hour out. Now of course, I personally can force the front-end to use Europe/London and it will work for me. And I guess ultimately it would make sense to program the system to allow the user to specify a timezone rather than relying on the server default. But right now it doesn't, and any solution would need to take the playout system into account. At any rate, none of this is the point. If you're using the system default timezone, you expect it to (a) be correct and (b) be consistant. Note that this bug may affect other timezones which are on UTC durin the winter or summer, but I've not tested any other timezones as this would mean changing the system timezone and I'm not real keen on doing that on any of my systems. This bug was found on a Debian Squeeze system running the following version of PHP: PHP 5.3.3-7+squeeze3 with Suhosin-Patch (cli) (built: Jun 28 2011 08:24:40) Copyright (c) 1997-2009 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies I realise this is 5.3.3 and that 5.3.8 is now out. It's possible that this has been fixed but I could not find any traces of such a fix in the changelogs. I'd be interested to know if anyone else can confirm this bug and, if confirmed, what I should do about it. Thanks, Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] question about best practice for coding sql statements
On Sat, 12 Nov 2011, tamouse mailing lists wrote: I'm curious how others feel about this. When I'm creating an SQL string, either for a non-prepared or prepared execution, I build it in a variable and then pass the variable to the query or prepare function. This lets me easily add something to view the SQL statement, and also if there's an error, emit the SQL statement. I do this. This means that when a user encounters an error, they can actually give you a meaningful error report which should reduce the time it takes to fix it by a considerable amount. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Execute permission question
On Thu, 27 Oct 2011, Tedd Sperling wrote: You answered a question I wasn't prepared to ask, which was How can php scripts be executed when their execute permissions aren't set? Because as far as the system is concerned, the thing which is being executed is either PHP itself or something in which PHP is being run (e.g. Apache). The fact that PHP then loads a script and executes it is not really the point. When used in websites, it's the webserver itself which loads the PHP interpreter which in turn loads the script. So the webserver needs to be executable. The Apache module, for example, does not because Apache loads it into Apache which is already running. If you're not actually running programs on the host itself via a shell, then you probably won't need execute permissions most of the time. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Variable question
On Sat, 1 Oct 2011, Mike Mackintosh wrote:
Best bet would to toss this into either an object or array for
simplification, otherwise that type of syntax would need the use of
eval.
example: eval('echo $trivia_answer_'.$correct_answer.';');
You could do:
$var = trivia_answer_.$correct_answer;
echo $$var;
But I agree that an array would be simpler.
best bet would be to..
$trivia_answer = array();
$trivia_answer[1] = 1000;
$trivia_answer[2] = 1250;
$trivia_answer[3] = 2500;
$trivia_answer[4] = 5000;
echo $trivia_answer[$correct_answer];
You can define this a bit more simply:
$trivia_answer = array (
1 = 1000,
2 = 1250,
3 = 2500,
4 = 5000
);
You can do it even more simply by just giving the values, but indexes wil
start at 0:
?php
$trivia_answer = array (1000, 1250, 2500, 5000);
print_r ($trivia_answer);
?
Array
(
[0] = 1000
[1] = 1250
[2] = 2500
[3] = 5000
)
While manually defining an array like this is only slightly less tedius
than using 4 numbered variables, it's a lot easier to do if you're getting
data from somewhere else (e.g. a database of trivia questions). To use
the original way proposed, you'd have to keep constructing variable names,
which arrays avoid quite nicely.
In my opinion, the only real usefulness for a syntax like $$var (above) is
if you want to do something with a bunch of variables in one go. For
example:
foreach (array (title, artist, album, label) as $field)
echo ucwords($field) . ': ' . $$field . 'BR';
The above comes from a function which manages only a single record, so no
real need to use an array. I could of course, e.g. record['title'] etc,
but I don't see much could be gained unless I needed to be able to manage
an entire record as a single unit.
Geoff.
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Re: [PHP] scroll down list -visible, but not possible to choose
On Wed, 31 Aug 2011, rob...@myself.com wrote: I have the below function with array for satus of issues where I need to have 'Resolved/Closed' visible but not available for choice This as closing is a separate function to ensure correct resolution code is selected Already tried removing 'Resolved', and got everything working only to notice when testing that when viewing issues the Resolved ones showed up as 'Support Working' even though closed in the system There are two possible points of failure here, your code and browser behaviour. Whenever I'm faced with this sort of problem, I look at the source code in my browser to see the HTML my code generates. Then I can determine if my code is outputting what I'd intended. If it is, then my code is right but the implementation is wrong, as the correct HTML produces the incorrect result. If you'd done this, you'd have seen what the problem is. The problem is that, having taken away Resolved as a possible option, all items marked Resolved are unable to be listed as selected. Consequently no items are selected and the browser defaults to the first item in the list which is Support Working. I've never had to do this, but http://www.w3schools.com/TAGS/tag_option.asp says you can use the disabled attribute to disable an option. So your resulting HTML could look like this: option value=Resolved disabledResolved/option or option value=Resolved disabled selectedResolved/option as appropriate. A simple if statement could be used to set the disabled attribute for the Resolved selection only. IMHO this is vastly preferable to any trickery you may use with javascript to prevent the user from selecting Resolved. I've never struck a select field like this and am now interested in coding one up just to see how it works in practice. HTH, Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Code should be selv-maintaining!
On Mon, 29 Aug 2011, Rico Secada wrote: You go into your homemade library of code to re-use some piece that you already are using 12 other places in production. Now, last time you worked on the code you thought it was almost perfect. While working on the code this time you find an undiscovered bug or some part of the code that looks like you where on drugs when you made it. This is why it's good to write this kind of thing as functions. Then if you find some great problem with it later, you can drop in the replacement functions and the code that calls it (hopefully) won't need modification. Of course, it's easier to be cleverer after the event. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Dreaded Premature end of script headers
On Fri, 26 Aug 2011, tamouse mailing lists wrote: The log says what I said: Premature end of script headers filename I put this into Google and got this: http://htmlfixit.com/cgi-tutes/tutorial_Common_Web_dev_error_messages_and_what_they_mean.php#premature As I understand it, the webserver is complaining that it did not get all the headers it expected from the script before it terminated. Given that you say this is for a cron job, the script may well be doing exactly what you want it to do, but it's not outputting anything which is why you get an error. Presumably, you are calling this cron job with some process which runs the PHP script through a URL on your webserver. To fix this, I'd suggest one of the following. Either: 1. Modify the script so that it does actually output something, thereby making the error go away. or 2. Run the script directly with PHP instead of via your webserver. E.g.: php -f yourscriptname IMHO, 2 would be the better way to go if you can do this. HTH, Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Using stand-alone PHP scripts with Drupal
Hi, I know this is probably more a Drupal question, but I'm guessing some here have probably had to deal with this. I've written some PHP code which works just fine on its own. Now someone wants to include it in their Drupal site, with the regular headers and footers for their site surrounding the output from my scripts. Is there an easy way to include the PHP in a page on their site? Not sure which version of Drupal they're running, trying to find out. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Login with Remember me Feature
the admin area.br /*
*?php header(Location: index_admin.php); ?/div*
*?php*
*}*
* if($usr_level == newbie)*
*{*
*?*
*div class=messageYou have successfuly been logged in. You can now
access to the newbie area.br /*
*?php header(Location: index_newbe.php); ?/div*
*?php*
*}*
* if($usr_level == advanced)*
*{*
*?*
*div class=messageYou have successfuly been logged in. You can now
access the advanced area.br /*
*?php header(Location: index_advanced.php); ?/div*
*?php*
*}*
* *
*}*
*
*
*? *
There's a lot to say about this.
First and foremost, as mentioned by someone else, you can't send location
headers once output has begun. Moreover, there's no guarantee that the
user's browser will display any messages contained in the page body, even
if therre are any.
This is easy to get around, however, by using a page refresh. This is
demonstrated below.
Second, I'm assuming you've set up the various access levels as defined
constants. If you haven't, the above code isn't going to work. I'm going
to assume you have, but you've not shown us this. You've also not shown
us how $usr_level gets its value.
Third, you don't seem to have set up your HTML page. I'm guessing that
you've not actually done this and you need to.
Finaly, my belief is that if you need to cut and paste code, you're doing
it wrong. Instead of having all these separate tests and HTML blocks, we
could do this much more simply with a switch statement and a couple of
variables.
Note: I see you've used newbe in your newbie page redirect, instead of
newbie. I'm going to assume this was deliberate. If not, you can get
rid of $page_suffix entirely and just use $access_name instead.
Given all the above, here's how I'd rewrite this code:
switch ($usr_level)
{
case admin:
$access_name = admin;
$page_suffix = admin;
break;
case newbie:
$access_name = newbie;
$page_suffix = newbe;
break;
case advanced:
$access_name = advanced;
$page_suffix = advanced;
break;
} // end switch on $usr_level
?
html
head
titleRedirecting.../title
meta http-equiv=REFRESH content=10;url=http://?php echo
$_SERVER[HTTP_HOST] . /index_$page_suffix.html?
/head
body
div class=messageYou have successfully been logged in. You can now
access the ?php echo $access_name ? area.br //div
/body
/html
?php
} // end if logged in
?
The above also assumes your index_* files are in the webroot, you can edit
the refresh line if this is wrong.
HTH,
Geoff.
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[PHP] Closing PHP tag best practice?
Hi All,
While watching one of Jeffrey Way's CodeIgniter tutorials, I was
gobsmacked when he noted that it was best practice not to have closing
PHP tags as closing tags might introduce whitespace issues. So I tried
syntax checking a few simple pages and, to my surprise, the syntax
checkers accepted the pages even though the closing ? was missing.
However, I suspect that there may be issues with this. For example,
what happens if you include or require something that has no closing
PHP tag? For example, consider two files:
File: test_inner.php 8--
?php
echo This is the inner code\n;
---8
File: test_outer.php 8--
htmlhead/headbody
?php
include ('test_inner.php');
echo This is the outer code\n;
?
/body/html
---8
I thought that there might be an issue with the parser attemting to
parse the closing body and html tags as PHP, so I ran a check on one
of my development machines with the above files and there was no
error. It seems that, on my development machine at least, a PHP code
block can be closed either explicitly (with '?') or implicitly by the
EOF! However, experience has shown me that what works on one server
might not work on all of them as there are so many configuration
options and so many versions of PHP 'in the wild'.
So, is Jeffrey correct when he says that omitting the closing PHP tag
is best practice? Also, are there any 'gotchas' to doing this?
TIA,
--
Geoff
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[PHP] Re: Escaping '
On Friday, July 22, 2011, Floyd Resler wrote: I did a fresh install of PHP on a new server. I had gotten used to PHP automatically adding a backslash before single quotes when form data is submitted. It seems that is shut off in my new install. How do I turn it back on? Check the manual for 'Magic Quotes GPC': http://php.net/manual/en/security.magicquotes.php However, you may want to rething enabling this as it's deprecated and judging by the discussions I've seen it will be removed in the not too distant future. HTH, -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] using wget in shell for download(snort)
On Sun, 10 Jul 2011, Tamara Temple wrote: On Jul 10, 2011, at 5:38 AM, Negin Nickparsa wrote: I want to make a batch file and then exec it in php I have a problem in batch file wget have been installed in Yast I want to download a RuleFile from snort.org I used this on shell: $ wget http://www.snort.org/reg-rules/snortrules-snapshot-2900.tar.gz/c0e9480af637e53c7aae823a40a131edc1343db5\-O snortrules-snapshot-2900.tar.gz that string is an oinkcode from the site this commandline has error and I don't know why What is the error? This: b5\-O at the end of URL looks suspicious. That's the problem. The \ should be a space. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] What type of PHP5 shall I install to learn PHP5 together with Apache, Please specify the Apache type too Since There are Two Apache types also
On Fri, 8 Jul 2011, Varuna Seneviratna wrote: I am Using Ubuntu 11.04 Desktop as my OS.Below are the two types of PHP5 available for installation php5 - server-side, HTML-embedded scripting language (metapackage) php5-cgi - server-side, HTML-embedded scripting language (CGI binary) I got the above by running the command apt-cache search PHP5 1 What is the difference between the two. One is part of the other. I'm running Debian (which Ubuntu is based on), and by looking at the php5 package you can see that it depends on php5-cgi and a few other packages. 2 What shall I install to learn PHP with apache(Please specify the apache version too since there are two types available for Ubuntu) Can't really help you much there without more information, though again assuming the Debian packages are the same or similar, installing the apache2 package should pull in everything you need. HTH, Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Constants in strings
On Wednesday, July 6, 2011, Dave Wilson wrote:
OK. We all know that constants cannot be accessed directly via their
name in double-quoted or heredoc strings.
FWIW, this looked like it might be a right royal PITA for me ATM.
However, I've got a work-around.
With about a dozen scripts written using 'heredoc', I discover the
need to include extra information for which I required a constant. The
answer for me was to initialize a variable to have the same value as
the constant and to use that in the heredoc string. e.g:
define ('KONST', 100);
$konst = KONST;
echo END
Some sample text in which we need $konst
END;
A similar approach is to declare a 'pseudo-constant' variable instead
of defining the constant (e.g. $konst=100 instead of the first two
lines of code in the above sample).
HTH,
--
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Re: [PHP] I want to use POST when redirect via PHP Header function.
On Thursday, June 30, 2011, Md Ashickur Rahman Noor wrote: I want to use POST when redirect via PHP Header function. Is it possible? AFAICT, it isn't. You can use GET variables by passing them on the querystring. These can then be accessed via $_REQUEST, which is an amalgamation of $_POST, $_GET, and $_COOKIE. So if you have a script that might take input from either $_POST or $_GET, you can usually code fairly transparently by replacing both by $_REQUEST. Alternatively, you can create a form on the page and use client-side javascript to 'auto-submit' via the body onLoad event. However, this does require JS on the client and so cannot be guaranteed. HTH, -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: I want to use POST when redirect via PHP Header function.
On Thursday, June 30, 2011, Jasper Mulder wrote: Personally, I think that incorrect spelling is far more annoying than the quoting; that is, if it does not originate from incapability due to English (whether it be British or American) being not the native language, as opposed to spelling errors because of vapidity. Personally, I'm not sure that those who are lifeless, dull, or unintersting are any more or less prone to spelling errors than the rest of us; or that the more interesting members of this list are immune! As for the readers of this list, I am sorry to go into this non-PHP subject, but I couldn't really let this pass. Au contraire! Typos are very much a PHP subject. Take this from someone who spent nearly two hours yesterday debuggin PHP code with imbalanced parentheses, parentheses that should have been braces - and vice versa, ampersands in place of dollar signs, and other typos! I think the moral is that one should never code when tired ;( -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Time zones are spinning my brain
On Wed, 29 Jun 2011, Brian Dunning wrote:
$start = gmdate('Y-m-d\TH:i:s.00\Z', strtotime(yesterday 00:00:00));
$end = gmdate('Y-m-d\TH:i:s.00\Z', strtotime(yesterday 23:59:59));
I think this is right, since it's 7 hours off California time, but I
just need someone to double check my spinning head. Will this give me
the PayPal transactions that arrived during California's yesterday, or
do I need to change something?
Assuming your timezone is set to California time (
date_default_timezone_set ('America/Los_Angeles') ), then yes.
Geoff.
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Re: [PHP] Time zones are spinning my brain
On Wed, 29 Jun 2011, Richard Quadling wrote: And UTC is not the same as GMT. Ish. GMT is only valid for 6 months of the year. Then, due to DST, it becomes BST. UTC is just UTC. This is incorrect. For all practical purposes, GMT and UTC are the same. The fact that the time in Greenwich is not GMT/UTC for half the year is not relevant. http://www.diffen.com/difference/GMT_vs_UTC All the GM* functions (gmdate, gmstrftime, etc) are intended for dealing with Universal Co-ordinated Time. As a side note, there is (or at least was) no gmstrtotime function. I get around this by putting + at the end of the string. HTH, Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Time zones are spinning my brain
On Wed, 29 Jun 2011, Brian Dunning wrote:
Thanks everyone. It seems to be working correctly. You gave me some
extra peace of mind. I did set the
date_default_timezone_set('America/Los_Angeles') but it looks like that
was in the defaults anyway. :-)
It probably is if this is where your site is hosted. But all you need to
do is change hosting providers to one somewhere else, or for someone who's
not careful to mess something up on the system, and the script will break
all because you assumed it would always be right. So better to set it and
know it's right.
Geoff.
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[PHP] Re: URL Rewriting
On Thursday, June 23, 2011, Ashley Sheridan wrote: I've not yet seen any evidence yet that pretty URLs actually benefit SEO. I regularly search for answers to problems online, and mostly I get forums as the results, all of which have URLs like showthread.php?t=1234567 Anecdotal perhaps, but I see the opposite. Most of what I see 'above the cut-line' in search results doesn't have a querystring and the forums at the top of the list mostly seem to be rewritten. For example, in a recent search on Google.co.uk for pusher aircraft, the first page except for the last result were all 'SEO-friendly' URLs. The last but one returned result was an obviously rewritten forum post http://www.theaerodrome.com/forum/2001/11195-pusher-aircraft.html The first returned result with a querystring was a YouTube video. I also tried searching for something about which I'm fairly confident that the majority of information 'out there' is contained in forum posts and although the second result on the first page was a forum post, all but three on the first two pages had no querystring. That said, the reason I use rewriting is because it makes site maintenance much easier for me rather than because of any SEO benefit - real or imagined. -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: URL Rewriting
On Wednesday, June 22, 2011, Daniel Brown wrote:
RewriteEngine on RewriteRule ^theme([0-9]+).php$
 /index.php?theme=$1 [L]
That's neither nginx nor PHP, so it's not really relevant to the
OP's questions.
I guess that the answer should be that you can rewrite outside of PHP
and then make use of the rewrites within your PHP application.
However, you can't AFAICT rewrite within PHP itself.
FWIW, I'm using mod-rewrite in one of my applications. In my .htaccess
file, I have:
8---
RewriteEngine On
RewriteRule ^/$ master.php?url=index.html [L]
RewriteRule ^(.+\.html)$ master.php?url=$1 [QSA,L]
8---
So that all .html files get rewritten to master.php with the
originally requested file on the querystring. In master.php, I then
have something like:
$content = str_replace(.html, , $_GET['url']) . .php;
require ('header.php');
if (file_exists($content)){
include ($content);
}
require ('footer.php');
This lets me have all the common content in required files with the
content that is unique to each page defined separately and without
needing to embed the top-level page structure in each page. It also
gives me 'search-engine-friendly' URIs.
HTH,
--
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[PHP] Re: Submit Using An Image Form Processing
On Saturday, June 18, 2011, Ron Piggott wrote:
I am not getting anything. Is there a correct way of passing a
variable through an image? The value in this above example is the
auto_increment value of the product. From this I could remove the
item from the shopping cart.
An image causes two variables (name_x and name_y) to be set where
these give the coordinates of the point on the image where the user
clicked. So, the corresponding x and y $_GET or $_POST variables will
be set and using your example, if you had:
form action='adjust_cart.php' method='post'
INPUT TYPE=image
SRC=http://www.theverseoftheday.info/store-images/trash_can.png;
WIDTH=20 HEIGHT=20 style=float: right;border:0;
alt=Remove Product From Shopping Cart name=remove_product /
/form
Then in the called script, you could use:
if (isset($_POST['remove_product_x'])){
// do stuff to remove product from cart
}
HTH,
--
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[PHP] Re: What do you get for ...
On Tuesday, June 7, 2011, Richard Quadling wrote: What do you get for ... php -r var_dump(realpath(null)); PHP 5.3.5-1ubuntu7.2 on Ubuntu 11.04 kernel 2.6.18 returns the same value as __DIR__ However, PHP 5.1.6 on CentOS 5.6 kernel 2.6.18 returns bool(false). Doing php -r var_dump(__DIR__); on this machine shows that __DIR__ is undefined. Executing both commands in an intranet-visible, php script shows the same thing. HTH, -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: What do you get for ...
On Tuesday, June 7, 2011, Richard Quadling wrote: But the surprising issue is that your 5.1.6 returns bool(false). So far, that's the only report I've got that shows inconsistent behaviour for PHP5+ I too was surprised, which is why I took the time to report. AFAICT, I've got the standard LAMP stack for CentOS 5.6 from the time I developed the first application on it. The output from print_r($_SERVER) contains the expected script-related paths and I don't get issues running PHP scripts on this server either via Apache or via cron (as shell scripts). If specific output from this server would help, I may be able to give this to you off-list. HTH, -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: Re: [PHP] phpsadness - P.C. shmee seee.
On Sun, 5 Jun 2011, Tim Streater wrote: Anyone whose site says that sort of crap needs a good smack. Don't get me started on Facebook. If they don't like your browser, they redirect you to theirWe don't support your browser page. They don't even let you try with your unsupported browser, which might well work if you're clicking on a link to a particular status update. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: phpsadness - P.C. shmee seee.
On Sun, 5 Jun 2011, Richard Riley wrote: Why do you feel FB should support some antiquated browser that doesnt support any of the newer technoogies which enable security and more advanced client side rendering? I don't. I just don't want them to lock out my browser just because they don't support it. Many pages which don't work optimally under Lynx can still be read, which is all I'm wanting to do anyway. I can use the mobile site fine, but if someone posts a link to a status message or some other item on Facebook, it's to the main site and not the mobile one. I don't even bother clicking because I know Facebook won't even try to send me the page I want. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: phpsadness - P.C. shmee seee.
On Sun, 5 Jun 2011, Richard Riley wrote: I don't. I just don't want them to lock out my browser just because they don't support it. Many pages which don't work optimally under Lynx can still be read, which is all I'm wanting to do anyway. They need to or there can be unintentional side affects that will reflect badly on them and possibly you. Rubbish. All they need to do is what everyone else does and say This site may not work well on your browser, we recommend using Internet Explorer or firefox (or whatever they support). Then if I choose to use it, it's on my own head, which is fine by me. If you really want a half arsed user experience then set your browser string ;) Would that not work for you? It probably would. But this tangent began with the principle of Use IE or Firefox and how we hated sites that said that. It's the principle of the thing. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: phpsadness - P.C. shmee seee.
On Sun, 5 Jun 2011, Richard Riley wrote: If they allowed incompatible browsers that caused havoc then before you know it the great unwashed would be demanding more and better support or complaining about lack of functionality. Doing what they do they make it very clear from day one. This would be a fair enough attitude if they only applied it to their member sections, but they don't. They set themselves up as publishers of information, page hosts of sorts, then don't let anyone in who wants to *read* them. Dont like it? The APIs are open. Write your own interfaces to their authentication and graph API and target the parts that wont result in your accuont being banned for chucking access tokens around and breaking their security model. Totally not the point. Quite aside from the fact that Mobile Facebook works extremely well with Lynx, and so did Facebook Lite until they sadly took it away, it's not what I'm having trouble with. An example of what I'm talking about is the following tweet: ABCGrandStand: #nrl : NSW ORIGIN team game two.. Dugan, Hayne, Hopoate, Gasnier, Uate, Soward, Pearce, Gallen, Ennis, Mannah,... http://fb.me/uPHxKiFC http://twitter.com/abcgrandstand/status/77271757383413760 Now, correct me if I'm wrong, but there's no need to log in or anything remotely 21st-century required to read the rest of this post. All you need to do is click the URL and the appropriate Facebook status will come up, which you're free to read without any further clicking on your part. But only if you're using a browser that's been blessed by the Facebook gods. If you're not, you're sent to http://www.facebook.com/common/browser.php with no other course of action. I hope you can appreciate my point. The choice to use Facebook was a decision made by the person sending the tweet, not me. It's not going to kill them to either let me see the page with appropriate functionality warnings, or to flick-pass me to the equivalent mobile Facebook page. I can't view it on the mobile site myself without first resolving where the shortened URL points to, changing the www to m and hoping it works, or signing in and trying to find it myself. Even Twitter, who don't let me login to the regular site without javascript, are quite happy to let me view tweets unauthenticated on their site with Lynx. If I want to login, I need to use their mobile site. Not a problem - if I try to use their main site and it doesn't work, it doesn't work. At least they let me try. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: [PHP-WEBMASTER] encoding issue
On Thu, 2 Jun 2011, Richard Quadling wrote: There are other possibilities, but they could have legal repercussions - essentially reversing the encoding may be considered as an attempt to bypass a copyright protection system which could contravene the http://en.wikipedia.org/wiki/Digital_Millennium_Copyright_Act. Note that the DMCA is United States legislation and may not be relevant. Copyright law is pretty universal though and you could get into trouble with this anyway. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] smart auto download file
On Wed, 1 Jun 2011, Ali Asghar Toraby Parizy wrote: I need to tell something to the user before starting download. something like Your download will begin in a moment... . So header couldn't help me. If I try to echo anything header doesn't work! Couldn't you just do an HTML redirect? !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.0 Transitional//EN html head titleFile Download/title meta http-equiv=REFRESH content=10;url=http://www.example.net/download;/HEAD BODY PYour download will start in a few seconds./P PIf your download fails to start automatically, A HREF=http://www.example.net/download;click here/A./P /BODY /HTML Of course, this is the resulting HTML you want to produce (or something like it). You'll obviously get PHP to echo the appropriate URL. This approach has the benefit that it'll work on anything. My prefered browser does not support javascript, so you look me out of your site if you use it. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] iPhone sadness
On Mon, 30 May 2011, Andre Polykanine wrote: most of you post your messages *after* the quotes. It's really not comfortable: I use screenreading software here and I need to scroll with my down arrow key before I see the actual message. I use screen reading software as well and prefer bottom-posting. Of course, those who quote an entire message (or messages) before their post should be shot, but thankfully this is a minority of people. Since we're all pitching in with our arguments for top/bottom posting, I'll briefly state mine: 1. Bottom (or at least not top) posting allows you to interleave your responses amongst the quoted text. This makes it a lot easier to know what is being responded to, and actually also makes it a lot more likely that all points that need answers will actually be answered. 2. Particularly if #1 is followed, quoted material more often than not tends to be trimmed to what is relevant. Top-posting not only usually results in the entire message being quoted, but often the entire thread right back to the beginning (or at least back to whoever bottom-posted last on it). This can cause very large messages fairly quickly, especially if combined with HTML mail (don't get me started on *that* one). Unfortunately, Outlook Express (and perhaps others) seem to actively discourage doing the right thing. One reason is that at least in Outlook Express, it's impossible to set different quoting settings for replies and forwards. So you either end up with forwards with all quoted lines (very annoying to listen to I assure you), or replies where it's impossible to tell what's quoting and what's new text (unless you're sending as HTML mail of course). And of course, the single reason (IMHO) why it's likely more people top-post - it's less work. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] iPhone sadness
On Sun, 29 May 2011, Richard Quadling wrote: On 29 May 2011 01:36, TR Shaw ts...@oitc.com wrote: (sorry for the top posting) Sent from my iPad Are you telling me that you can't scroll down the page on an iPad? I refer back to my comment that the Sent from my iPad/iPhone is inherently an apology. Ironicly, it's on by default. It can be turned off, however. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Detecting HTTPS connections under Apache
On Fri, 27 May 2011, Curtis Maurand wrote: $_SERVER['HTTPS'] I don't see this at all. I'm definitely connecting securely. Here are the status lines from Lynx when surfing to https://MintFM.net/phpinfo.php: 1. Looking up mintfm.net 2. Making HTTPS connection to mintfm.net 3. Verified connection to mintfm.net (cert=mintfm.net) 4. Certificate issued by: /C=FR/O=GANDI SAS/CN=Gandi Standard SSL CA 5. Secure 128-bit TLS1.0 (DHE_RSA_AES_128_CBC_SHA1) HTTP connection 6. Sending HTTP request. 7. HTTP request sent; waiting for response. 8. HTTP/1.1 200 OK 9. Data transfer complete So it's definitely secure, but I'm not seeing anything in $_SERVER that says so. So I'm wondering if Apache is not exporting something properly. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Detecting HTTPS connections under Apache
On Thu, 26 May 2011, ad...@buskirkgraphics.com wrote: So when you echo $_SERVER['SERVER_PORT']; You get port 80 even if the url currently is https://www.yoursite.com ? Yes. If this is the case good luck. Because you have serious issues. OK. This on its own is not particularly helpful. Surely I can't be the only person in the universe who has experienced this. I'm running a minimally-altered stock Debian Apache and PHP setup. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Detecting HTTPS connections under Apache
Hi, Apologies if this is covered somewhere but I've searched fairly extensively and not found anything. I'm working on an application which has a function for redirecting to a given URL. This is generally used for redirecting after a form has been submitted. Right now it sends an HTTP URL in the redirection, which means it can't work under a secure connection. I'd like to be able to use it over HTTPS but don't want to force people to do this. So ideally I'd like to be able to detect the protocol in use and send the appropriate protocol in the Location header. The problem is that, at least on the system I'm working on, I can't see any way of detecting the protocol. _SERVER[SERVER_SIGNATURE] and _SERVER[SERVER_ADDR] both give the port as 80, even if I specify port 443 in the URL. I've seen references to _SERVER[HTTPS] or something similar but it's not in the output I get from either print_r ($_SERVER) or phpinfo (). I'm running PHP Version 5.3.3-7+squeeze1 on Apache/2.2.16 (Debian). The machine is an x86-64 VPS running Debian Squeeze. I have full access to the VPS, so if something needs tweeking in Apache (or anything else) then I can do this. Thanks in advance, Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Detecting HTTPS connections under Apache
On Thu, 26 May 2011, ad...@buskirkgraphics.com wrote:
The %{HTTPS} variable is not an Apache core variable. A more-portable
solution is to check %{SERVER_PORT} for port 80 or port 443 -- or for not
port 80 or not port 443.
ah but this doesn't actually work for me, I get 80 regardless of whether I
use HTTP or HTTPS, even if I use https://example.com:443
Also, you're requiring an *exact* match on not /user or not /admin,
meaning that directory and file paths below these directories will not be
matched -- They will always be redirected by the second rule.
{snip other rewrite stuff}
uh... I didn't say anything about matching URL patterns or the like. I
just want my application to do whatever is already being done. And
hard-coding URL paths is a bad idea because someone else might want to
install the code under some other path.
I don't really want to use rewrite rules to achieve this. If I did, every
time my code redirects the browser, it will cause a rewrite from an HTTP
URL to an HTTPS URL, which surely is inefficient.
Surely it should be simple enough for me to detect whichever is being used
and continue to use it. This makes my code separate from whatever the
webmaster decides to do regarding being secure or not.
Geoff.
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[PHP] Re: Date validation
I'm posting here for completeness as I've now rolled my own date
validator (code follows my sig). It allows almost all valid 'English'
formats except ordinal day values (1st, 3rd, etc.) Because I'm in UK
and writing for a UK audience, I've parsed ambiguous dates as d/m/y.
Those writing for places where m/d/y is the convention will probably
want to alter the tests in the second if ... elseif construct. It's a
bit long-winded, but by all means use or modify if it's any use to
you.
Best regards,
Geoff
---8--
function is_date ($str){
$dateOK = TRUE;
if (stristr($str, /)){
$aryDate = explode (/, $str);
} elseif (stristr($str, -)){
$aryDate = explode (-, $str);
} elseif (stristr($str, )){
$aryDate = explode ( , $str);
} else {
$dateOK = FALSE;
}
if (count($aryDate) != 3){
// we don't have the correct number of date parts
$dateOK = FALSE;
}
if ($dateOK) {
// trim any leading or trailing whitespace
for ($i = 0; $i count($aryDate); $i++){
$aryDate[$i] = trim($aryDate[$i]);
}
// determine which value is month and which is day
if (!is_numeric($aryDate[0])){
$month = $aryDate[0];
$day = $aryDate[1];
} elseif (!is_numeric($aryDate[1])){
$day = $aryDate[0];
$month = $aryDate[1];
} elseif ($aryDate[1] = 12){
$day = $aryDate[0];
$month = $aryDate[1];
} else {
$month = $aryDate[0];
$day = $aryDate[1];
}
$year = $aryDate[2];
// Expand 2-digit years to 4 digits. Cut-off is current year + 10.
if (strlen($year) != 4){
$now = date('y') + 10;
$year = $year - $now 0 ? '20' . $year : '19' . $year;
// check for correct year length
if (strlen($year) != 4){
// we didn't start with two digits
$dateOK = FALSE;
}
}
// Convert month names to month numbers
if (!is_numeric($month)){
$aryMonth = array('nowt', 'jan', 'feb', 'mar', 'apr', 'may', 'jun',
'jul', 'aug', 'sep', 'oct', 'nov', 'dec');
$month = strtolower(substr($month, 0, 3));
foreach ($aryMonth AS $key = $value){
if ($value == $month){
$month = $key;
}
}
}
$dateOK = $dateOK checkdate($month, $day, $year);
}
return ($dateOK);
}
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[PHP] Date validation
Hi All,
I'm scratching my head trying to remember how I validated string
representation of dates 'the first time around' with PHP (before going
over to ASP/VBScript for almost a decade). I have a feeling that I
must have rolled my own validation function, because I can't find
anything other than strtotime() and checkdate() in PHP itself.
Although checkdate() seems fine, strtotime() appears to be 'broken'.
It seems where possible to return a timestamp that makes some sense
rather than return FALSE when handed an invalid date. For example,
strtotime('30 Feb 1999') returns 920332800, which is equivalent to
strtotime('02 Mar 1999'). When I ask a user to enter a date and they
make a typo, forget that September only has 30 days, etc., I want to
be able to detect the problem rather than post a date in the following
month!
It also seems that where the DateTime class uses string representation
of dates, times, or intervals that these must be 'in a format accepted
by strtotime()'; which implies that 'under the hood' strtotime() is
used to convert the string to a date/time value, which implies that
the Date/Time class cannot properly handle string input values.
This seems to be such a common requirement that I suspect I've missed
something basic. I'd thus be grateful for any pointers as to how to
properly validate user-input string representation of dates.
Cheers,
--
Geoff Lane
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[PHP] Re: Date validation
On Friday, May 20, 2011, João Cândido de Souza Neto wrote:
What about using this:
$date = DateTime::createFromFormat(Y-m-d, 2011-05-20);
Hi João, and thanks for your help.
FWIW, I thought about that but it didn't work for me. On further
investigation, I'm now completely confused and suspect I've got a duff
PHP installation. Thankfully, it's a virtual machine so it should be
reasonable easy to 'vapourise' and start over (perhaps with CentOS
rather than Ubuntu as the OS).
Anyway, the following code produces the following result when the
variable $str = '7 feb 2010':
[code]
echo pDate is $str/p\n;
$date = DateTime::createFromFormat('d M Y', $str);
echo pre;
print_r($date);
echo /pre\n;
echo date('d M Y') . br / . date('d M Y', $date);
[/code]
[result]
pDate is 7 feb 2010/p
preDateTime Object
(
[date] = 2010-02-07 15:11:34
[timezone_type] = 3
[timezone] = Europe/London
)
/pre
20 May 2011br /
[/result]
This is pretty much as expected except that the second call to date()
- i.e. date('d M Y', $date) - outputs nothing.
Also, AFAICT createFromFormat fails if the date is not formatted
according to the first parameter. So, for example:
$date = DateTime::createFromFormat('d M Y', '5/2/10')
fails ... (at least, it does on my system :( )
--
Geoff
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[PHP] Re: Date validation
On Friday, May 20, 2011, Peter Lind wrote:
This is pretty much as expected except that the second call to
date() - i.e. date('d M Y', $date) - outputs nothing.
date() takes an int as second parameter - a timestamp. Not an object.
And from a quick test it doesn't look like DateTime has a __toString
method.
Thanks - my misunderstanding. I'll have to look into that further.
Also, AFAICT createFromFormat fails if the date is not formatted
according to the first parameter. So, for example:
 $date = DateTime::createFromFormat('d M Y', '5/2/10')
fails ... (at least, it does on my system :( )
I'm sorry for asking but what did you expect?? You're specifically
calling a method that parses a string according to a given format. If
it parsed the string according to any other format, that would be a
huge WTF.
Don't feel sorry to have asked, because it's exactly what I expected.
João suggested using createFromFormat. Since I need to validate dates
input in any valid form, I felt it wouldn't work and my comment was to
João to that effect. That said, I've seen some weird and unexpected
results from my development server recently (e.g. my post of 16 May re
weird cookie behaviour) which was why I added the proviso (at least,
it does on my system) just in case that method wasn't meant to behave
as I inferred.
With all that said, I still have no 'out of the box' method to
validate a user-input date string and I haven't been able to find the
code I used with PHP 3.something before my sojourn into the depths of
ASP to know how I used to do this!
--
Geoff
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[PHP] Re: Date validation
On Friday, May 20, 2011, Peter Lind wrote:
Try:
$date = new DateTime($date_string_to_validate);
echo $date-format('Y-m-d');
Many thanks. Unfortunately, as I mentioned in my OP, the DateTime
class seems to be 'broken' for my purposes because it uses strtotime()
to convert input strings to date/time. Rather than fail when presented
with an invalid date, strtotime() returns the 'best fit' if possible.
This can be seen from:
$date = new DateTime('30 Feb 1999');
echo $date-format('Y-m-d');
which results in 1999-03-02 even though 30 Feb is an invalid date.
--
Geoff
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[PHP] Re: Date validation
On Friday, May 20, 2011, João Cândido de Souza Neto wrote: What about using regular expression to validate so using DateTime object to parse it if it?s a valid date? Again, thanks. For info, I only need to know that it's a valid representation of a date on this occasion as I intend to use the MySQL CAST function to do the actual conversion within the INSERT or UPDATE SQL statement that commits the value to the underlying database. I strongly suspect that you're correct in that I should be able to use a regexp to do the validation. This could well be the catalyst that gets my sleeves rolled up, a large pot of strong, black coffee on the hob, and me finally trying that little bit harder to get my head around regular expressions! I was hoping that PHP would have an equivalent to VBScript's IsDate() function but it looks like I'll have to roll my own! Thanks again, -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Wierd cookie behaviour
Hi All,
I'm scratching my head a bit here. I have a form handling script that
branches dependent on whether a user has admin privileges over the
application. Here's the function that tests this:
function isAdmin($user){
global $chan;
$query = SELECT isadmin FROM csw_user WHERE username = ' .
mysql_real_escape_string($user) . ';
// echo p$query/p\n;
$result_table = mysql_query ($query, $chan) or die (Error: Can't retrieve
the data);
if ($result_row = mysql_fetch_array ($result_table)){
$canAdminister = $result_row['isadmin'] 0;
} else {
$canAdminister = FALSE;
}
return ($canAdminister);
}
Note the commented echoing of the query, which I uncommented during
debugging.
This function was failing with the message from die() Error: Can't
retrieve the data. On uncommenting the echo statement, I got:
SELECT isadmin FROM csw_user WHERE username = ''
IOW, there was a blank string passed to the isAdmin function.
So I checked at a higher level and temporarily modified the code to
read:
echo pre;
print_r ($_COOKIE);
echo /pre\n;
$canAdministrate = isAdmin($_COOKIE['username']);
This showed that $_COOKIE['username'] contained the username of the
logged-on user as I expected, yet that username was not passed to the
isAdmin function 8-/
FWIW, I've resolved the issue in that it no longer happens. I'd
forgotten to put the opening and closing html, head, and body tags and
the issue went away as soon as I did that. However, I'd appreciate
info on why as I need to run some scripts within a validated user
session where those scripts do their processing and then use the
header function to redirect the browser to an appropriate page.
TIA,
--
Geoff
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Re: [PHP] dynamic copyright in page footer?
On Saturday, April 30, 2011, Simon J Welsh wrote:
I would use something simple like:
if(date('Y') == '2011') {
echo '2011';
} else {
echo '2011-', date('Y');
}
... or in one line:
echo (date('Y') != '2011' ? '2011-' : '') . date('Y');
However, you might want to change that to:
echo '2011-' . date('Y');
at the first review after the start of 2012!
HTH,
--
Geoff
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[PHP] Re: PHP delete confirmation
On Friday, April 29, 2011, ad...@buskirkgraphics.com wrote:
Personally I would use the javascript page navigation is senseless if they
miss click.
Javascript: Small and simple javascript.
onclick=return confirm('Are you sure you want to delete?')
Personally, I'd use Javascript and also check that the form was
submitted after the client-side check. So something like a hidden
field ('jstest') in the client-side form that is set to 1 by the
onClick event prior to showing the confirmation box. Then in the
handling PHP:
if ($_POST['jstest'] == 1){
// the client called us via Javascript::confirm, so we know the
// use really wants to delete
} else {
// We weren't called via Javascript::confirm, so we need to
// handle the confirmation in PHP
}
HTH,
--
Geoff
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Re: [PHP] Javascript detection
On Thursday, April 28, 2011, tedd wrote: To answer your question in a new thread. No, the $_SERVER super-global isn't going to give you anything nor is anything else like it. You see, PHP has a difficult time detecting IF Javascript is turned ON in the client's browser because PHP is history by the time the browser does anything, including running Javascript. Thanks, Tedd. That's how I suspected things to be. However, the list was very quiet, I might have missed something, and so I felt it couldn't hurt to ask. TBH I'd already done: echo pre; print_r ($_SERVER); echo /pre; and didn't spot anything there that I thought would give me the info I sought - but then I don't know the purpose of every element of that array and $_SERVER is not the only superglobal! As Yogi Berra once said; It's always hard to predict things especially when it deals with the future. However, once the browser has requested a transfer via HTTP that request is in the past and that request is where stuff that lets you know some of the browser's capabilities (e.g. HTTP_ACCEPT) comes from. So it would be possible by a similar mechanism for a browser to tell your script whether or not Javascript (or any other language for that) is available. However, there are two ways to kind-of doing it: Way 1 -- I place an element in html that is hidden from the user's view via css (display:none) and if Javascript is ON then Javascript changes the css so that the element is shown to the user (display:block). Here's an example: This is the reverse of part of what I've done for the page in question. I had a tabbed interface similar to: div id=sect01 style=display:block; [stuff] /div div id=sect02 style=display:none;visibility:hidden; [stuff] /div ... However, the second div must be visible if JS isn't available otherwise the user can't access that section. So I've changed the style of the second and subsequent divs to display:block and then used an onLoad routine to change the .style.display and .style.visibility attributes of the second and subsequent divs to none and hidden respectively so that those who have JS get the full DHTML. Now I also using AJAX on that page. However, I can use the fact that the trigger events aren't handled if JS isn't available to just retrieve what's actually needed at the time via AJAX if JS is available or submit the full form if it's not. Of course, that complicates things in the PHP on the server as the script then has to handle both interim and final form submission. FWIW, it's possible to detect whether or not Javascript is available, but not AFAICT at 'first contact' because you need the 'first contact' page to do something to prove that JS is available, from which you can assume that JS is not should that something not be done. For example, you can make the link to a page into a form submission - e.g: form name='jstest' action='myscript.php' method='post' input type='hidden' name='wehavejs' value=1 /form a href='myscript.php' onClick=document.forms['jstest'].submit();return(false); Click Here/a The form is submitted if the browser has JS and so the hidden input field is posted. However, if the browser doesn't have JS the default behaviour occurs when the link is clicked and so the field is not posted. Hence we can use isset($_POST['wehavejs']) to determine whether or not the browser has JS capability. Thanks again, -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Destroying cookies... not working
On Thursday, April 28, 2011, Sean Greenslade wrote: On Wed, Apr 27, 2011 at 8:52 PM, Rick Dwyer rpdw...@earthlink.net wrote: The following did the trick... is there any reason I should not use it? $name=mysession; setcookie($name); --Rick Only if you're OCD, since the cookie is still technically there, just empty. Without setting the expire arg, the browser will keep it until closed. What happens if you then use isset($_COOKIE['mysession'])? TBH, I don't know and don't have the time to experiment just now. However, this should return false if the cookie has been destroyed but if just set to null or an empty string via Rick's code I suspect it'd return true. -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Javascript detection
On Thursday, April 28, 2011, Ashley Sheridan wrote: I'm not sure if my earlier reply got through, but here it is again (or at least the general gist of it) Many thanks. I got your info the first time around but didn't respond directly to you as Tedd made similar comments and I'd responded to his post. Like everyone has mentioned thus far, it's better to use progressive enhancement or try to avoid relying on Javascript at all. Even a website as complex as Facebook allows users to go on it without needing a browser that runs Javascript. Something as complex as Google Docs has a very clear need for Javascript though, so you wouldn't expect that to work without it. In my case, one of the controls I'm considering is a tiled map with up to 16 tiles. This is on a page with four tabbed sections that takes several seconds to load at broadband speeds. Also, the nature of the site means that people may need to access it and use this form while connected via mobile broadband or even GSM; connection media that are usually both slow and paid for per unit of data transfer. I need to record in hidden input fields the location of where a user clicks on the map and also echo that click back in the form of a marker overlaid on the clicked tile. Using AJAX, I can update just the two fields plus one image. Without Javascript, the extra bandwidth needed to unnecessarily download the entire page multiple times will cost my users both time and money. So while I must ensure the site works without Javascript, I really need the optimisation that JS brings. Lastly, if you're creating the website for a government or business, you really need to make it work without Javascript, as a lot of countries make it illegal to discriminate against a disability, which you would be doing if you made a site that was unusable without Javascript. After all, there are many speech and Braille browsers out there that can't take advantage of Javascript, and a lot of Javascript apps which require mouse interaction to run (mouseover/hover events, etc) AIUI, a lot of countries (mine included) make it unlawful to knowingly discriminate against the disabled. However, The Disability Discrimination Act requires only that reasonable steps be taken to avoid discrimination ... and making stuff accessible to the disabled at considerable inconvenience and/or expense to everyone else is not considered reasonable. Now where I can, I'll produce stuff that is enhanced by images, colour, JS etc. but will still be usable in Lynx. However, some stuff (e.g. mapping) won't work without graphics and so is inherently unavailable to the visually impaired. It makes no sense whatever to try to make such content work in speech and Braille browsers. Thus making a site that's unusable without Javascript doesn't necessarily constitute unlawful discrimination! -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: What's faster using if else or arrays?
On Thursday, April 28, 2011, Jim Giner wrote:
Arrays - using a silly construct that probably still takes as much
time to evaluate machine-wise as anything else. And as far as
readability goes, it is even sillier. IMO.
I don't know so much about that ...
I'll use a global array to define an application-wide set and then use
in_array to branch dependent on whether some variable has a value that
is or is not a member of that set. Using a series of predicates in a
multiple OR, or using switch is a non-started for me for maintenance
reasons, and the alternative of storing the set of values in a
database is a lot slower. Here's an example:
FWIW, I've got a mapping application. Users can click on a map tile to
indicate a point of interest. However, they can also click on zoom
buttons, or pan buttons. These buttons are named 'plus', 'minus',
'left', 'right', 'up', and 'down' and I have these names in an
application-wide array:
$controls = array ('plus', 'minus', 'left', 'right', 'up', 'down');
The way that these map view controls are handled is very different to
the way a click on a map tile is handled. Somehow, the code is more
readable with:
if (in_array($clicked, $controls)){
// ...
}
than with:
if ($clicked == 'plus' || $clicked == 'minus' || $clicked == 'left' || $clicked
== 'right' || $clicked == 'up' || $clicked == 'down'){
// ...
}
Even using switch isn't as clear IMO as that can intersperse the
options with several lines of code, which can make the logic harder to
spot.
However, the real benefit of using an array comes in making the code
easier to maintain. Drawing my map is a library routine, as is the
handler for the controls. However, the handling of clicks on map tiles
is different for each of the eight or nine contexts in which the
mapping is used. So the best way IMO of coding this is to test in each
page which element has been clicked and to either call a library
routine or a context-specific handler from there.
Now say, for example, that I want to augment the zoom functionality by
having a 'slider' that permits the user to go directly to a desired
zoom level. I can redefine the set of controls by simply changing the
global array. However, using the long if construct mandates that I
must amend the code of every page that uses the mapping, which makes
for a lot of extra work and is just plain silly IMO. IOW, using an
array can help avoid coding inconsistencies.
--
Geoff
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[PHP] Detecting Javascript (was Re: Newsgroup status)
On Wednesday, April 27, 2011, Ashley Sheridan wrote: Firstly, please do not hijack a thread, if you have a question, start your own. We won't bite if you create new threads, whereas we might a little if you hijack ;) Ouch! My apologies - Hijacking was not intended and I've changed the subject to reflect that this is a distinct 'branch'. There are ways to detect the general capabilities of the client machine, however they are generalisations, and may not be accurate. Try and grab an up-to-date browscap.ini file, and use this in conjunction with the user agent string found in the $_SERVER array. This should tell you whether the user agent is capable of running Javascript. Thanks for your reply. As you wrote, identifying the 'alleged' user agent in that way is not accurate. For example, I run Opera with JS disabled to check what my work looks like without JS and I know some who run without JS for security reasons. My immediate concern is a large form where two data entry fields are implemented as image maps. The easiest way of presenting this to the user is as a DHTML tabbed page with AJAX to store x/y locations of the image map clicks in hidden fields. However, the page still has to work without JS. So my thought was that if I could detect whether JS is available at the client, I could serve different content dependent on JS status. AFAICT, there's nothing that lets me know 'at first hit' although for pages that aren't directly accessed (e.g. stuff for which you need to log in each session), it's possible to use Javascript to write a hidden field. When the user logs in, this is used to detect that JS is available and to set a session cookie that you can use on subsequent pages to determine that JS is there. That said, I've done some sideways thinking. If JS is not available then client-side scripts don't run. Clicking image maps or submit buttons produce the default behaviour and onClick, onChange etc. events aren't triggered. So I've laid out the page for no JS and then used an onLoad function to hide the appropriate content. I've also coded the form handling PHP script to refresh the form with the appropriate values if one of the image maps is clicked. That way, the onClick etc. events can be used to trigger AJAX if JS is available and make an 'interim form submission' if it's not. However, it would be so much simpler if I could tell straight off and for sure whether JS was available; but if this isn't possible I guess it'll be a limitation of HTTP rather than PHP. Thanks again, Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Last Name extraction in query
On Monday, April 4, 2011, Jim Giner wrote: Actually - I can't seem to find a mysql newsgroup anywhere. The ones that come up in google search are all dead and buried. You could try http://forums.mysql.com/ or have a look around Yahoo groups (e.g. php_my...@yahoogroups.com). HTH, -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: is there any syntax to save a file in mysql?
On Monday, March 28, 2011, Negin Nickparsa wrote: ... i want every user to have his/her own files in their account. (i used session for them) n now i want them to have their specific files then i think i must have db that store the files n user can retrieve his/hers not just details if i just save the details then how they download the files that they receive from another users? One way is to create a directory for each user in which you store than user's files. You can name each directory for the user's ID. That strategy lets more than one user have the same filename, although it doesn't let one user have more than one file with the same name (which might be required for a CMS etc.) Others can download files by clicking on hyperlinks to the target files. HTH, -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: opening a new window from php script
On Friday, March 25, 2011, Grega Leskovšek wrote: Do I have to use target=_new - I can not do this - I am working this for my University seminar and it has to be valid HTML5. I guess that this is an HTML issue rather than PHP. However: Despite what the W3C validator might claim, I understand that the target attribute of the anchor tag is still valid in HTML5. In any case, HTML5 is a draft standard AFAICT, and so I have to question a university's insistence on adhering to a 'moving target'. http://www.w3.org/TR/2011/WD-html5-20110113/links.html#attr-hyperlink-target should give you some ammunition to demonstrate to your tutor that a href=somewhere.html target=_blank is valid. Quoting from that W3C document: The target attribute, if present, must be a valid browsing context name or keyword. It gives the name of the browsing context that will be used. User agents use this name when following hyperlinks. They also say: A valid browsing context name or keyword is any string that is either a valid browsing context name or that is an ASCII case-insensitive match for one of: _blank, _self, _parent, or _top. FWIW, the 'target' attribute has been removed from 'link' elements, which many have apparently wrongly taken to mean it's been removed from hyperlinks (i.e. anchor tags). However, link and a are not the same thing! An example of each: link rel=stylesheet type=text/css href=styles.css / a href=someplace.html target=_blankclick here/a HTH, -- Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: echo?
Hi Jim,
On Wednesday, March 23, 2011, 1:42:18 AM, you wrote:
ok - here's the code in question.
$q = 'select * from director_records ';
$qrslt = mysql_query($q);
$rows = mysql_num_rows($qrslt);
for ($i=0; $i$rows; $i++)
{
$j = $i+1;
$row = mysql_fetch_array($qrslt);
echo $j.'-'.$row['userid'];
if ($row['user_priv'] )
echo ' ('.$row['user_priv'].')#13#10';
else
echo '#13#10';
}
The output I get is:
1-smith5
f-ginerjm (M)
g-smith8
While the alpha parts are valid, the index is only correct for the first one
(0) obviously.
I couldn't understand why you're getting characters, so I thought I'd
have a go myself. First, some DDL and DML to recreate your data:
create table director_records (userid char(16), user_priv char(8));
insert into director_records (userid, user_priv) values ('smith5',
''),('ginerjm','M'),('smith8','');
Now when I ran your code I got:
1-smith5#13#102-ginerjm (M)#13#103-smith8#13#10
That is, all but the first result has #10x in front of it. These are
HTML entities that display as characters and it so happens that #102
is 'j' and #103 is 'g'. Strictly, these entities should be terminated
with a semi-colon (i.e. #102; and #103;), but your browser is
'obligingly' making sense of the 'bad formatting' and this is why
you're getting characters.
BTW, an alternative to your for construct would be to use a while loop
to iterate through a data table. e.g. in your case, I'd have used:
$q = 'select * from director_records ';
$qrslt = mysql_query($q);
$i = 1;
while ($row = mysql_fetch_array($qrslt)){
echo $i++ . '-' . $row['userid'];
if ($row['user_priv']){
echo ( . $row['user_priv'] . );
}
echo br\n;
}
HTH,
--
Geoff Lane
Cornwall, UK
ge...@gjctech.co.uk
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[PHP] Re: $_POST variable
Hi Danny,
On Friday, March 11, 2011, 7:28:10 PM, you wrote:
I have a form that has a long list of radio-bottons inside of it. The
radio-buttons are dynamically created via php and MySQL.
Here is an example of one of the radio buttons:
input type=radio name=?php print (radio_.$result_from_mysql) ; ?
value=0
input type=radio name=?php print (radio_.$result_from_mysql) ; ?
value=1
Now, when I submit this form to another page for processing, how would I
catch
the above radio-button's $_POST name since I do not know the name, only that
it
You could use foreach to iterate through the post variables until you
encounter a match:
foreach ($_POST as $key = $value){
if (substr($key, 0, 6) == radio_) {
$buttonName = $key;
$buttonValue = 4value;
break 2;
}
}
I haven't tried the above code, but I hope someone will correct my
efforts if I'm wrong.
--
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Cornwall, UK
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Re: [PHP] Re: Which CAPTCHA is the besta?
There are several PHP Captcha classes available as well. A few examples are: http://www.white-hat-web-design.co.uk/articles/php-captcha.php http://milki.erphesfurt.de/captcha/ http://nogajski.de/horst/php/captcha/
Re: [PHP] Regular Expression just one step away from what I need....
I am no regex expert but wouldn't preg_match_all( /'([^']+)'/Ui, $theString, $matches); Be more flexible? On 8/17/07, Thijs Lensselink [EMAIL PROTECTED] wrote: If it's only real words this will do: $theString = 'foo''bar''glorp'; preg_match_all( /'([a-z]+)'/Ui, $theString, $matches); -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] manual vs. meta refresh
And if they do a manual refresh on the page you re-directed to, the was_meta_refresh_before flag will be set. How will you tell it from a meta-refresh redirect? You need to use a cookie or session id. Regardless, by reading the whole thread and 'cheating off the other students' this has been pretty beat to death. On 8/11/07, Richard Lynch [EMAIL PROTECTED] wrote: On Fri, August 10, 2007 6:51 pm, Geoff Nicol wrote: That was my first thought as well but you will still have to use a session variable or cookie for the page following redirect to know it was a meta-refresh. No. For the page following, you can use some other GET parameter, such as was_meta_refresh_before So long as you are not using the same GET parameter, you can bounce back and forth all day. -- Some people have a gift link here. Know what I want? I want you to buy a CD from some indie artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So?
Re: [PHP] manual vs. meta refresh
Rob, What you suggested, which matches the theory of what I and others suggested, would certainly work as an ID that changes is involved. If you read the specific posting by Richard Lynch, which is what I was replying to, you will note he suggest refreshing to a static 'was_meta_refresh_before' link which of course won't work as refreshing manually at that point will be indistinguishable from a true meta-refresh after the redirect has occurred. Anyways; this thread seems done, there are several solid suggestions on how to do it properly. I just didn't want it to close on an incomplete solution, as people apparently don't read the thread history ;) -Geoff On 8/11/07, Robert Cummings [EMAIL PROTECTED] wrote: On Sat, 2007-08-11 at 18:26 -0700, Geoff Nicol wrote: And if they do a manual refresh on the page you re-directed to, the was_meta_refresh_before flag will be set. How will you tell it from a meta-refresh redirect? I already explained this in previous email. Go read the history of this thread. Cheers, Rob. -- ... SwarmBuy.com - http://www.swarmbuy.com Leveraging the buying power of the masses! ...
Re: [PHP] audio recorder
A service called AudioGenerator provides an online recording capability like you are describing via Flash. Their flash app is at: http://upload.audiogenerator.com/audio_recorder.swf Normally called with the code: object classid=clsid:d27cdb6e-ae6d-11cf-96b8-44455354 codebase=http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0; id=video_recorder viewastext= align=middle height=300 width=215 param name=allowScriptAccess value=sameDomain param name=movie value=audio_recorder.swf param name=FlashVars value=imefajl=1055s4dfsd45amp;w=newrecordbymicrophone2.aspamp;popup= param name=menu value=false param name=quality value=high param name=bgcolor value=#CC /object I don't know if this is a custom component they created or a purchasable one. I provide the above link and info only as an example of one approach; kindly confirm all proper licensing requirements prior to making any use of this applet. If you do find a solution with a viable license kindly update me (or the list) as I too would be interested in this. -Geoff On 7/30/07, M. Sokolewicz [EMAIL PROTECTED] wrote: Tijnema wrote: On 7/31/07, John Pillion [EMAIL PROTECTED] wrote: Not exactly a php question. but I'm doing the project in php, so does that count? ;-) A client of mine wants a simple audio recorder for users to record a short clip/message for other users. anyone recommend any simple audio recorder applets or similar that can easily be integrated with php? Thanks! J How do you want to implement it? Where is the microphone connected? Server? Client? or is it a Stand Alone app (CLI)? If it's connected to the client PC (which I'm guessing), then you can't use PHP for recording it, it needs to be done in a client side language, and if you don't want the client to download an application, you have a few options, but there's only one I can recommend, and that is java. But really, you're not on the right list for that ;) If it's connected to the server, or if it's an Stand Alone app, then I would recommend you looking for some software that does record from the microphone, and use it through system, exec, ``, ... functions. Tijnema You could also implement it using Shockwave Flash, no idea how though, as I've never bothered looking into that stuff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Beware of OS X PHP security update...
On 03/03/2006, at 11:15 PM, Marcus Bointon wrote: The OS X security update issued yesterday includes a PHP 'fix', by which they mean that it installs PHP 4.4.1. If you have installed PHP 5 from elsewhere, it will get trashed along with your PEAR setup. PEAR is now completely confused or me and just crashes when I try to do anything. Marcus -- Marcus Bointon Synchromedia Limited: Putting you in the picture [EMAIL PROTECTED] | http://www.synchromedia.co.uk -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php I installed the update successfully, no effect on PHP 5. Perhaps you need to look elsewhere Geoff -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP mysql data result set compression
On 6 Feb 2006 at 16:03, David Yee wrote: Hi all- is there a way have a large data result set from MySQL compressed? E.g. I have a table with over a million rows of data that I want to do a select * from on and then take that result, do some field/data manpulation, and then insert row-by-row to another table. The problem is the result of the query is so big that it's casuing PHP to swap to disk, causing things to slow to a crawl. Doing a show processlist on the mysql console shows that Writing to net is the state of the running select * from query. I tried adding the flag MYSQL_CLIENT_COMPRESS to both mysql_pconnect() and mysql_connect() but it doesn't seem to do any compression (I can tell by the size of the running php memory process). Any ideas would be appreciated- thanks. You could try using the LIMIT keyword with an offset number to get records in more manageble chunks, then write out each chunk, freeing its resources before loading the next one. Geoff. David -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] automating creation of thumbnails
I remember the other day someone was asking for a way to easily create a bunch of thumbnails from image files. I just spotted this: http://www.phpclasses.org/browse/package/2846.html This is a simple class that can be used to generate thumbnails of image files. It can resize the images so they do not exceed a given width or height. The images are loaded as true color to preserve the quality as much as possible during the rescale operation. Currently, the images can be loaded and saved in the JPEG and GIF formats. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] absolute vs relative path?
On 25 Jan 2006 at 15:19, William Stokes wrote: Hello, I Have a web site on one server and a test site on another. How can I build the hyperlinks so that they work on both servers without modification. For example build this link dynamically: http://www.domain.com/www/test.php In test server the same should be: http://internalserver/www/test.php Non-php solution: Use relative links. Instead of referring to a page as http://www.domain.com/www/test.php;, rather just use /www/test.php or even just /test.php, if the script containing that link is already in /www. Thus your links will look the same on both versions. php-based solution: If you must have absolute URLs (maybe to do redirects or SSL) use: $_SERVER[SERVER_NAME] it will return either www.domain.com or internalserver. So you can build your links as: ?php $url = 'http://' . $_SERVER[SERVER_NAME] . '/www/test.php'; ? Geoff. Thanks -Will -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] absolute vs relative path?
On 25 Jan 2006 at 15:22, Barry wrote: Geoff wrote: On 25 Jan 2006 at 15:19, William Stokes wrote: Hello, I Have a web site on one server and a test site on another. How can I build the hyperlinks so that they work on both servers without modification. For example build this link dynamically: http://www.domain.com/www/test.php In test server the same should be: http://internalserver/www/test.php Non-php solution: Use relative links. Instead of referring to a page as http://www.domain.com/www/test.php;, rather just use /www/test.php or even just /test.php, if the script containing that link is already in /www. Thus your links will look the same on both versions. /test.php would refer to root. so it would be www.domain.com/test.php not www.domain.com/www/test.php (!) probably a small typo ;) Oops, twas indeed. Well spotted :- Barry -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] POP3 or other servers in php
I'm looking a POP3/IMAP server written in PHP. Or failing that, any socket-based sever would help me by being an example I could base my own on. I know there are a million functions, routines and classes for talking to POP3/IMAP servers. That is not what I need. I need an actual service (or example of one) in PHP, one that listens on a port and handles multiple incoming connections. What 'nixers would call a daemon. I've done some RTFM and found quite a lot of interesting stuff in the manual and manual comments of the Socket Functions section. What I'm now seeking is real-world examples. Many thanks, Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Can PHP works with telnet?
In the php manual, in the fsockopen() page, in the user comments, I found this: -- Found this php class to use telnet from here: http://cvs.adfinis.ch/cvs.php/phpStreamcast/telnet.class.php There's no docs and a lot of it's in french though so maybe it will help someone to have my working code. This code is used to telnet into a pix and execute the shun command. //---telnet.class.php usage example- $telnet = new telnet; // Next line is for logging. //By default you need to create a folder called /log and give it //the rights your webserver is running. $telnet-setLog(1,mylog); $telnet-set_host(myhost.myplace.com); //You need to set the prompt to what you know its going to be, //then call wait_prompt...which waits for what you just set $telnet-set_prompt(Password: ); $telnet-connect(); $telnet-wait_prompt(); $telnet-write(mypassword); //Have to change the prompt...in my example this is the //prompt that a pix will change to after loggin in. $telnet-set_prompt(pix ); $telnet-wait_prompt(); $telnet-write(en); $telnet-set_prompt(Password: ); $telnet-wait_prompt(); $telnet-write(enable_password); //When you go into enable mode in a pix the prompt changes $telnet-set_prompt(pix# ); $telnet-wait_prompt(); $telnet-write(shun . $shun_address); $telnet-wait_prompt(); $telnet-write(clear xlate); $telnet-wait_prompt(); $telnet-write(write mem); $telnet-wait_prompt(); $telnet-write(exit); $telnet-disconnect(); -- In that same manual page, there is lots of other information and suggestions on making telnet connections. Note that cURL will also allow telnet. Geoff. On 23 Jan 2006 at 9:56, HoWang Wang wrote: Hi all, Recently I got a job to write a PHP webpage to display some infomation which have to obtain from telnet. Telnet is the only way to query the software. I have made a quick search on php.net but I can't found amy extension support telnet. Is there any way to do so? Or it is impossible with PHP but can be done with external binaries? Please help, thanks. HoWang Wong -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php !DSPAM:43d445e0116957800291649! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Determining number of days in a selected month
Apart from using date(t, $month) you can also determine the last day of a month by getting the 0th day of the following month. Say I wanted to know the last day in Feb 2006: $mnth = 2; echo date(d,mktime(13,0,0,$mnth + 1, 0, 2006)); This is sometimes useful when you are calculating, or your code needs to walk up or down dates. P.S. You may wonder why I specify 1pm as the time on the given day. If I don't (if I use 0) this is the same as saying midnight, in which case it is right at the very end of the day. This way I avoid daylight saving and/or minor hour/min/sec differences that might push the timestamp over into the next day. A small thing, but since I deploy code in a number of places, it has saved me countless headaches. Geoff. On 20 Jan 2006 at 13:51, Jeffrey Pearson wrote: The java mailing list I belong to recently had this same conversation. I didn't know php had that ability built in. Java doesn't (score another one for php). The cleanest solution I saw on the Java list that would be non-language specific (in other words, the same logic can be implemented in ANY language) would be to set a variable to the first day of the month AHEAD of the month you want. For example, if your looking for February, 2000, set the variable to be March 1st, 2000. Then subtract 1 day. I have actually archived this solution in my own little knowledge base as I thought it was quite clever. Hope this helps other people as well. Jeff Pearson On Jan 20, 2006, at 8:17 AM, [EMAIL PROTECTED] tg- [EMAIL PROTECTED] wrote: date(t) will give you the number of days in the current month. Or you can do: date(t, mktime(0, 0, 0, $month, $day, $year)) to get the number of days in a specific month in a specific year (that way you can get leap year accurate counts..) -TG = = = Original message = = = Is there a way to easily tell PHP how many days there are in a selected month without writing the following out for each month: if($Month == January) ~$NumberOfDays = 31; elseif($Month == February) ~if($Year == A Leap Year) ~~$NumberOfDays = 29; ~ ~elseif($Year != A Leap Year) ~~$NumberOfDays = 28; ~ elseif($Month == March) ~$NumberOfDays = 31; and so on, and so on, and so on I would greatly appreciate any help. Thanks. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php ___ Sent by ePrompter, the premier email notification software. Free download at http://www.ePrompter.com. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php !DSPAM:43d1ab1b244201588548228! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] anyone know a good php proxy
Hi all, Does anyone know of (or have sample code for) a decent PHP proxy? All I need to do fetch webpages from a remote site, replace certain trigger text, then return them to the browser. However, the user's browser must only be aware of my proxy page - it shouldn't know where the pages are coming from. Thanks in advance, Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] inserting text into a mime message
Hi All, I've been searching the archives for help on this, but have come up empty-handed. Here's the thing: I'm using a PHP script to parse every message coming through a mailserver. The server invokes my script for each message, giving it a filename containing the full raw text of the email. The script needs to modify the raw message file, inserting a footer (some trailing text, eg: a disclaimer) at the end of each part of readable message. It doesn't touch file attachments, but it needs to insert the footer in any plaintext, HTML text or both (if they exist). There are so many different mime options and encoding types that it seemed like re-inventing the wheel to try working with only the raw message text, so instead I decided to use the PEAR Mail_mimeDecode module, which returns a very nice object array of all the parts, decoded and ready for use. It's no problem going through this and inserting the footer wherever it is needed. That much I've done. My problem is trying to rebuild that object array (the output of the Mail_mimeDecode::decode() function) back into its raw form once again, so that I can write the modified raw text back to the message file and the email can go on its way. Another complication is that except for the insertion of the footer, I cannot modify the original message. All the headers, dates, receive-paths, etc, must remain unchanged. Has anybody ever done anything like this before - re-encoding a message that had been decoded by Mail_mimeDecode::decode()? I've looked at the encode() function, but it seems to be used for making a simple message from scratch (with just one body part), it is not really the opposite of decode(). [I may be wrong about this - there are no examples in the PEAR manual]. I'm not hung up about what to use, it doesn't have to be PEAR, I will use any library or code that will do the job. Alternatively, if it is possible to do this with encode(), I would love to see an example, as I couldn't get it to work that way myself. Many thanks. Geoff. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Grouping
Sound like a straightforward control-break (at least, that's what
they used to call it in the COBOL days :-)
assuming you're getting data into an assoc array called $records,
you could stick this into your loop:
{
$letter = $records['LastName']{0};
if ($prev != $letter) {
print(br$letter$sep);
$prev = $letter;
}
print($records['LastName'] . br);
}
If you want to keep it neat, you can put it in a function, using a
static var to keep hold of $prev. It can return an empty string when
there is no change, or the delimiter if the letter has changed.
Geoff.
On 19 Jan 2006 at 10:19, Jeffrey Pearson wrote:
OK. I know I did this a LONG time ago but I don't remember how I did
it. Thus, my post.
I have a list of last names from a MySQL database. I need to display
them grouped by the first letter of their last names and insert a
separator on display. Similar to a phone book. So it looks like;
A
___
Adams
Apple
Army
B
__
Banjo
Bank
Bark
C
__
Captain
Car
Is there a way without jumping through too many hoops?
Thanks for any input you can give.
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Re: [PHP] URL - stream context
3 suggestions:
I honestly have no idea if this would work, but maybe fopen supports
non-blocking connections? Or creation of context-based connections
(for which you can use stream_set_blocking). If so, you could take a
stamp of the current time plus a timeout value, make the fopen call
(which would return immediately) then wait politely (I mean that
from a CPU perspective) in a loop until you have data, or the
current time goes past your time stamp.
Another avenue for investigation might be to try file_get_contents
to see if it's connection timeout can be controlled. It seems to
work in a similar way to fopen, in terms of having wrappers that are
aware of multiple resource types.
It might also be worth taking a look at cURL or similar libraries
that are also multi-resource aware, but give you greater control of
connections parameters and timeouts.
Geoff.
On 19 Jan 2006 at 14:49, Richard Lynch wrote:
On Thu, January 19, 2006 5:17 am, Jochem Maas wrote:
Richard Lynch wrote:
So I've been poring over the docs for the new stream stuff, and it
looks pretty nifty, except...
I'd really like to be able to just hand a URL to PHP like:
http://php.net/manual/en/ref.stream.php
er you can if allow_url_fopen ini setting is set to 1 (can't you?)
$fh = fopen('http://php.net/');
The crucial point buried too far into my initial post (sorry):
I NEED to specify a timeout for the initial CONNECTION to acquire the
data.
fopen does not allow this.
fsockopen does, but then I'm stuck with re-inventing the wheel on
handling dozens of different protocols to initiate the process to get
the data rolling.
For HTTP, you have to send GET $path HTTP/1.0\n
For FTP, you have to send GET $path\n
For a file, you don't send anything
..
..
..
So to get all the functionality of fopen() I'd need a monster long
switch statement with a bunch of protocols about which I know almost
nothing, including some rather complex stuff I can guarantee is over
my head for ssl:// https:// ftps:// and friends.
I really do not want to re-code all that, when I know it's down in the
guts of 'fopen'
In other words, I need an additional 'timeout' argument to fopen()
that works when url_wrappers is on, or a function to set the default
timeout for fopen() to wait.
PLEASE don't refer me to stream_set_timeout. THAT only applies to how
long to wait for data AFTER the stream is open and you are reading
data.
I'm asking for:
The convenience of fopen() that knows about dozens of protocols and
takes care of the grotty details so I can just start reading data.
The power of fsockopen() that allows one to specify how long to wait
for a slow source feed.
What I was hoping for, then, was that I could call this mythical
function url2context() that would convert *any* URL into an
appropriate stream context.
Then I thought I would be able to use that contact for fsockopen()
with a timeout for connection.
I now see that fsockopen() does not even take a stream_context, but
that fopen() now does, and none of this would do me any good at all...
I guess I was thinking that the magic of fopen() being able to handle
all those protocols had been bundled into the streams code, and that I
ought to be able to utilize that somehow WITH a timeout on the
connection.
I guess I'm stuck with re-coding all the stuff from fopen() in a giant
PHP switch and using my old-school fsockopen, just so I can have
control over connection timeout. :-(
And it looks like all the new streams stuff is very nifty for some
things, but rather useless for the feature that I believe quite a few
users have been asking for:
Gimme fopen() with control over timeout, so I can ignore all the
minutia of what kind of file/stream/URL/whatever I'm reading, but not
have my application waiting for 2 minutes when somebody else's server
goes down.
I tried to open a Feature Request to this, but it's already been
closed as Bogus wherein I was told to rtfm.
I've re-opened it, but based on my past mixed experience with the
people behind bugs.php.net, I figure I've only got a 50/50 chance of
somebody who actually reads and comprehends what I typed seeing it
before it gets closed again and ignored. :-(
Don't get me wrong -- I know what a monumental task they face, and am
aware that there are certain Pavlovian automatic reactions, and that's
how it is when they see the keywords embedded in my Change Request, so
I'm not dis-ing them... It's just Reality that a worthy feature worth
considering is probably going to get buried in the Bogus pile. [shrug]
If anybody reading this actually agrees with me, feel free to vote here:
http://bugs.php.net/bug.php?id=36072
If you think I'm an idiot, by all means vote against the feature request.
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Re: [PHP] New to PHP
I have a local web server running on my development PC, with an exact copy of all my sites stored locally, so I can develop and test as I go, only uploading when I know everything is 100%. For Windows machines, you can choose IIS or Apache, although I'd recommend you go with whatever your web server is running. Geoff. On 19 Jan 2006 at 16:02, Jedidiah wrote: I mentioned earlier that I recently switched my site over to PHP. I had a couple of reasons for this: 1: I was using Server Side Includes, and had been told that PHP includes were better and definitely more popular. 2: I began sending out a newsletter which was written by someone else in PHP. I am beginning to wonder if this was a good idea. I can no longer preview my pages without uploading the files to the server. This can really become a problem when I am making slight formatting changes to my CSS file where I need to refresh the page every few seconds until I get the look just right. Is it really worth changing all the files to PHP files and using includes? Is there any way around this, or am I stuck uploading?? Thanks, Jedidiah !DSPAM:43d01a9147492034818120! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] (Fwd) inserting text into a mime message
Nobody got any ideas on this? I would be interested to hear from anyone who has successfully adjusted parts of an email message while it is in transit, by ANY method. I'm getting desparate and will try anything, even if it is not 100% PHP. All ideas, suggestions greatly appreciated. Geoff. --- Forwarded message follows --- From: Geoff [EMAIL PROTECTED] To: php-general@lists.php.net Subject:inserting text into a mime message Date sent: Thu, 19 Jan 2006 10:51:37 +0200 Hi All, I've been searching the archives for help on this, but have come up empty-handed. Here's the thing: I'm using a PHP script to parse every message coming through a mailserver. The server invokes my script for each message, giving it a filename containing the full raw text of the email. The script needs to modify the raw message file, inserting a footer (some trailing text, eg: a disclaimer) at the end of each part of readable message. It doesn't touch file attachments, but it needs to insert the footer in any plaintext, HTML text or both (if they exist). There are so many different mime options and encoding types that it seemed like re-inventing the wheel to try working with only the raw message text, so instead I decided to use the PEAR Mail_mimeDecode module, which returns a very nice object array of all the parts, decoded and ready for use. It's no problem going through this and inserting the footer wherever it is needed. That much I've done. My problem is trying to rebuild that object array (the output of the Mail_mimeDecode::decode() function) back into its raw form once again, so that I can write the modified raw text back to the message file and the email can go on its way. Another complication is that except for the insertion of the footer, I cannot modify the original message. All the headers, dates, receive-paths, etc, must remain unchanged. Has anybody ever done anything like this before - re-encoding a message that had been decoded by Mail_mimeDecode::decode()? I've looked at the encode() function, but it seems to be used for making a simple message from scratch (with just one body part), it is not really the opposite of decode(). [I may be wrong about this - there are no examples in the PEAR manual]. I'm not hung up about what to use, it doesn't have to be PEAR, I will use any library or code that will do the job. Alternatively, if it is possible to do this with encode(), I would love to see an example, as I couldn't get it to work that way myself. Many thanks. Geoff. --- End of forwarded message --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] (Fwd) inserting text into a mime message
It seems to me that if you looked at the raw email and found the boundary, and focused on the only mime-types you care about, you'd be able to hack the file pretty easily... I just may have to do that. One problem though is that many mails are encoded in some way (I mean byte-encoding, like base 64) and I was hoping to make use of the transparent decoding capability of a class or library made to do that sort of thing. But if I cannot, then yours is the approach I will probably use. All them lawyerly crapola signatures outside the control of the actual user implies that there is SOME kind of software available to do it... ...but many of them are in commercial packages, or are plugins to MSExchange or similar. And most of the open-source ones only stick the footer in the first piece of text/plain that they find, without being aware of multiparts. Thanks, Geoff. On 19 Jan 2006 at 16:38, Richard Lynch wrote: All them lawyerly crapola signatures outside the control of the actual user implies that there is SOME kind of software available to do it... It seems to me that if you looked at the raw email and found the boundary, and focused on the only mime-types you care about, you'd be able to hack the file pretty easily... And if it's not mime-encoded, it's just text, and a simple fopen($x, 'a'); fwrite($x, $sig); fclose($x); would do it. Maybe I'm over-simplifying something? On Thu, January 19, 2006 4:22 pm, Geoff wrote: Nobody got any ideas on this? I would be interested to hear from anyone who has successfully adjusted parts of an email message while it is in transit, by ANY method. I'm getting desparate and will try anything, even if it is not 100% PHP. All ideas, suggestions greatly appreciated. Geoff. --- Forwarded message follows --- From: Geoff [EMAIL PROTECTED] To: php-general@lists.php.net Subject:inserting text into a mime message Date sent: Thu, 19 Jan 2006 10:51:37 +0200 Hi All, I've been searching the archives for help on this, but have come up empty-handed. Here's the thing: I'm using a PHP script to parse every message coming through a mailserver. The server invokes my script for each message, giving it a filename containing the full raw text of the email. The script needs to modify the raw message file, inserting a footer (some trailing text, eg: a disclaimer) at the end of each part of readable message. It doesn't touch file attachments, but it needs to insert the footer in any plaintext, HTML text or both (if they exist). There are so many different mime options and encoding types that it seemed like re-inventing the wheel to try working with only the raw message text, so instead I decided to use the PEAR Mail_mimeDecode module, which returns a very nice object array of all the parts, decoded and ready for use. It's no problem going through this and inserting the footer wherever it is needed. That much I've done. My problem is trying to rebuild that object array (the output of the Mail_mimeDecode::decode() function) back into its raw form once again, so that I can write the modified raw text back to the message file and the email can go on its way. Another complication is that except for the insertion of the footer, I cannot modify the original message. All the headers, dates, receive-paths, etc, must remain unchanged. Has anybody ever done anything like this before - re-encoding a message that had been decoded by Mail_mimeDecode::decode()? I've looked at the encode() function, but it seems to be used for making a simple message from scratch (with just one body part), it is not really the opposite of decode(). [I may be wrong about this - there are no examples in the PEAR manual]. I'm not hung up about what to use, it doesn't have to be PEAR, I will use any library or code that will do the job. Alternatively, if it is possible to do this with encode(), I would love to see an example, as I couldn't get it to work that way myself. Many thanks. Geoff. --- End of forwarded message --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php !DSPAM:43d0236364872042218820! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] URL - stream context
Richard, have you seen this:
http://bugs.php.net/bug.php?id=5153edit=1
This bug goes back to June 2000. And it's closed even though it is
clearly not fixed. Doesn't seem like they'll get to it anytime soon.
You might have to do it the long way, building your own protocol
handlers. Or, you might want to look into a 3rd party library, or a
command line option like lynx -dump -connect_timeout=n uri which
is multi-resource aware.
Geoff.
On 19 Jan 2006 at 17:28, Richard Lynch wrote:
On Thu, January 19, 2006 4:08 pm, Geoff wrote:
I honestly have no idea if this would work, but maybe fopen supports
non-blocking connections?
Not as far as I can tell...
You can call stream_set_blocking after it's open, but that doesn't
help a slow connection in the first place.
Or creation of context-based connections
(for which you can use stream_set_blocking).
Unless I'm seriously mis-reading docs, stream_set_blocking can only be
called on an already-open stream, not on the soon-to-be-opened stream.
fopen() in PHP5 does take a context, and if I could figure out how to
embed the concepts of do not block and timeout in $x seconds
within a context from the docs, and if fopen() would still handle all
the details of the various protocols, I'd be all set...
That's sort of what I was asking for in the original email, but...
It seems like you have to specify the 'scheme' as the key in the
context array.
So, I guess, I could, in theory, find a listing of all the schemes
fopen() supports, which might even be in a function, iterate over all
of those, and do something like:
$schemes = function_that_returns_all_schemes_fopen_supports();
$opts = array();
foreach($schemes as $scheme){
$opts[$scheme]['some_magic_undocumented_thing'] =
STREAM_CLIENT_ASYNC_CONNECT | STREAM_CLIENT_CONNECT ;
}
$foo = fopen($url, 'r', false, $opts);
if ($foo == false) $errors[] = $url timed out;
Only problem is, these constants are documented ONLY to work with:
http://www.php.net/manual/en/function.stream-socket-client.php
and that pretty clearly is working at a much lower-level than fopen
(and friends) as the very first example shows using TCP as a protocol,
and then you have to send the GET and any other headers, which is
exactly what I'm trying to avoid having to re-code in the first place.
So I'm back to square one, as far as I can see from the docs...
It's possible (still) that I'm just mis-reading docs, or am
continually skipping over the one new page in 'streams' that is making
everybody think this should be so simple, but I don't think so, since
I've read EVERY page in the new streams section several times now.
I'm not claiming 100% comprehension of every implication on every
page, mind you :-)
If so, you could take a
stamp of the current time plus a timeout value, make the fopen call
(which would return immediately) then wait politely (I mean that
from a CPU perspective) in a loop until you have data, or the
current time goes past your time stamp.
Yes -- if I could compose a stream_context doohickey that convinced
fopen() to use a time-out...
Another avenue for investigation might be to try file_get_contents
to see if it's connection timeout can be controlled. It seems to
work in a similar way to fopen, in terms of having wrappers that are
aware of multiple resource types.
file_get_contents() seems to suffer from the exact same limitations of
file()
I get the simplicity of fopen() with no control over connection timeout.
Maybe there is some underlying voodoo going on in the PHP internals
that some makes it crystal-clear why that has to be, but to this naive
user, if fsockopen can have a timeout, fopen and friends out to be
able to also, at least for schemes that support such a thing.
Obviously SOME kind of timeout is involved somewhere in fopen()
because it WILL timeout on some sites sometimes, even though
experimentation has shown that had it waited, it would have gotten
data eventually.
It might also be worth taking a look at cURL or similar libraries
that are also multi-resource aware, but give you greater control of
connections parameters and timeouts.
Maybe I've been mis-using cURL all these years, but it doesn't seem to
be anywhere near as simple as the mythical function I've described,
and really not much better than a giant switch for fsockopen to
duplicate all that code that's gotta be down in the guts of fopen (and
friends)
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Re: [PHP] Decision table/business rule parser?
Hi folks As an alternative, I worked briefly on a native PHP Petri-net workflow engine with a guy called Tony Marston before we parted ways. He has written it up here: http://www.tonymarston.net/php-mysql/workflow.html I wrote to Tony a couple of months ago and he said that his workflow code might be available someday, but wasn't available currently. His ideas are published on his website, but only code snippets. The code is Tony's, so I can't help, I'm afraid. I think you'll find it's itertwined with his development framework, so I'm not sure how useful it would be as a standalone in any case. Geoff Caplan Creative Living -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Decision table/business rule parser?
Hi Mike I'm not aware of any. I am kind of developing my own for my current Materials System. Sounds as though, like me, you might just get away with a decision table parser rather than a fully-fledged corporate rules engine. though your application is a bit more complex than ours. It's surprising to me that we are faced with rolling our own or working with Java - suggests that PHP still has a bit to go as a platform for serious business systems. With jBPM I hope I'll be able to change routing/approval of electronic documents more easily than it is currently. Are you planning to have PHP run as a servelet within JBoss? Does this work reliably? I much prefer to keep things as simple as possible. As an alternative, I worked briefly on a native PHP Petri-net workflow engine with a guy called Tony Marston before we parted ways. He has written it up here: http://www.tonymarston.net/php-mysql/workflow.html Geoff Caplan Creative Living Direct: 0121 515 1154 General: 01803 840 607 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Decision table/business rule parser?
Hi Does anyone know of an open source or commercial php library for parsing decision tables? Or failing that, a more general business rules parser? I can't find anything on the usual php script sites. Unless I'm missing something, this seems to be a gap - in the Java world there is a wide choice of native solutions. Geoff Caplan Creative Living -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Decision table/business rule parser?
Mike How about jBPM (http://www.jboss.org/products/jbpm)? I looked at it, briefly, awhile back. May implement it in the next release of my company software. Anyone have any experience with it? There's a wide range of Java solutions: http://www.manageability.org/blog/stuff/rule_engines/view Most of them are over-specified for our relatively modest requirements. Plus, I've never really looked into the practicality of using Java libraries with Php 4. The only practical option I've found is this project: http://sourceforge.net/project/showfiles.php?group_id=117793 ... but it's only got a couple of developers and I'm wary of betting my business on a library like this. Do you know a better way? With our modest needs, I'd much prefer to find a native solution, (if such a thing exists) rather than add a layer of complexity and potential unreliability by inter-operating with the Java VM. Geoff Caplan Creative Living -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Error Generated but no error?
I have a page that receives data from a form. Using $_POST['foo'], I am able to use this data in the page but I continually receive an error notice (PHP Notice: Undefined index: foo in /Library/WebServer/Documents/.. etc). This happens to all three indices that are passed by this form, yet the data IS appearing. How do I prevent these error messages? Geoff M -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Please wait page while processing - SOLVED
Hi For anyone interested, it was a combination of issues. First, I had to use flush() and ob_end_flush() combined to get the page to display in IE. end_flush didn't work on its own. Second, I was being dim in redirecting away from the message page - because of course it won't display after a redirect. So you have to do the processing in the message script, saving the result to the session. Then keep polling the message page with a client-side refresh till the gateway processing completes and you can re-direct to the result page. GC I'm writing a checkout. GC When user submits their card details, I want to redirect GC them to page with a please wait message. Then redirect to GC the script that does the payment processing. Then when I GC have the response from the gateway, redirect again to the GC result page. form - message - processor - result_page GC I've seen this done but I can't figure out how. -- Geoff Caplan Vario Software Ltd (+44) 121-515 1154 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Please wait page while processing
Hi folks - I'm writing a checkout. When user submits their card details, I want to redirect them to page with a please wait message. Then redirect to the script that does the payment processing. Then when I have the response from the gateway, redirect again to the result page. form - message - processor - result_page I've seen this done but I can't figure out how. The browser (IE) simply shows the initial card details form until the processing is complete, then shows the final result page. I can't get it to show the message page in the middle. Any suggestions would be welcome! -- Geoff Caplan Vario Software Ltd (+44) 121-515 1154 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
