Re: [PHP] Using PHP to get a word count of a MSword doc
Brad Wright wrote: Erik, thanks, are you able to pint me to some good reference sources on tokenizer's... i have never come across them before I have been scouring the web, and am coming up a decided blank. :) The only tokenizers I have used are the StringTokenizer and StreamTokenizer classes in Java. If you want to learn about these, go to this web page: http://www.mindview.net/Books/TIJ/ and download the book Thinking in Java. Chapter 9 is the chapter that covers File I/O and discusses how to use them. I have a feeling that the PHP tokenizers work very similarly to the Java one (just judging from the docs on the PHP site). Good luck, Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] complicated but fun, please help.
Daniel McCullough wrote: Yes sorry for not being clear. I am trying to use exec() and system(). I guess I'm trying to see if there is another way to do it, like write to a file and have acron job run every minute or so, or if there is some way to make it seem like I am doing this with the right permissions. That sounds like a good plan. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Question about a text file and foreach
Jim Greene wrote: Hi All, I have a text file that has entries like the following: user1:mbox1: user1:mbox2: I basically do: $mboxs = `cat file | grep user1 | cut -d: -f2'; I then want to print out the data in the $mboxs variable (array) I am trying to use foreach but it does not work.. I am assuming the data is not considered an array? I might be mistaken, but wouldn't the value of $mboxs just be a string containing those characters? If you meant to use backticks to open up a shell pipe, I /think/ that's something you can do only in Perl. You can do it in PHP with the system() function, but it doesn't return an array but rather a string. You can parse the string into an array with string-processing functions. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Authentication
Beauford.2002 wrote: I am looking for a simple authentication script that uses MySQL. I have downloaded about 10 of them (most with no instructions on it's use), but even at that they are not what I need. The PEAR project has 7 different authentication packages, including Auth which I understand lets you design your own. PEAR code tends to be widely used and well-tested. Also there is a mailing list similar to this one dedicated to discussion of and support for PEAR projects. http://pear.php.net/packages.php?catpid=1catname=Authentication When you go to the main page of my site it will ask you to login or signup. So I want to be able to authenticate the user if he logs in (not to much of a problem here, but I want to protect all pages (I don't want to use cookies as not everyone has these enabled). What other options do I have? If anyone knows a small script that can be modified, or point me in the right direction of how to do this, it would be appreciated. If you really want to reinvent the wheel, write an include file that is included onto every page of your site except your login page and the ones that you don't need to protect. This include file should check for a flag that indicates whether or not the user is logged in. If the user is not logged in, send a redirect header to the login page followed immediately by an exit() call. This way none of your scripts will be accessible without the user being logged in. To handle the login, the simple way to do it is to accept a username and password input from the user on the login screen and ship these to the database or wherever your user list is kept and test to see if they are valid. If they are valid, set the flag in the user's session indicating that they are logged in (which is checked by the include file). For maximum security, use SSL and beware the possibility of session hijacking. If you don't want to use cookies, you can either embed the SID in all hyperlinks of your site or just recompile PHP with the --enable-trans-sid flag (unless you're on PHP 4.2 or greater). Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Sorting Recordset by a calculation between 2 Records
Vernon wrote: I am calculating distances between to record's zip codes using php and have a need to sort the recordset by that value. How do I do something like this? I mean it's not a value in the table that I can use the SQL ORDER BY statement. I want to be able to have the distances closest to the individual first. When you say using php I'm assuming that this means you are not doing the calculation at the database, but rather in your PHP code. Use the distance you've calculated as the numeric index of an array, pointing to the record that corresponds to that distance. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Sorting Recordset by a calculation between 2 Records
Vernon wrote: Use the distance you've calculated as the numeric index of an array, pointing to the record that corresponds to that distance. Can you please expalin this statement? Perhaps a tutorial somewhere? I could explain it better if you could post the code that you have so far which extracts the records from the database. In other words, it's hard for me to explain it without seeing your records' structures. I don't know of a tutorial on this, when you see what I'm talking about you'll realize it's kind of basic. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] php auth instead of .htaccess
Bryan Koschmann - GKT wrote:
Hello,
I have gotten used to using .htaccess to protect files/directories, but
now I am looking at a need to authenticate against mysql. I have no
problem actually getting it to authenticate, but I'm wondering what the
simplest way to prevent someone from hitting anything other than the main
page (and not needing authenticate) without having to login at every page.
I'm assuming I would use something with sessions. Does anyone have a quick
sample of how to do this?
Yes, create a session variable using this syntax:
$_SESSION['logged_in'] = false;
Then authenticate the user. If the authentication succeeds, then change
the variable's value to true.
$_SESSION['logged_in'] = true;
Now on every page except your login page, test for the session variable
before displaying the page. If it's present and valid, display the page
as usual, if not, redirect to the login page.
if (isset($_SESSION['logged_in'])
$_SESSION['logged_in'] == true) {
// display page
}
else {
header(Location: http://domain.com/login;);
exit(Sorry, you are not logged in.);
}
The details are all in the manual under Sessions and Session-related
functions.
Erik
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP Processing Order || Function Calls
CF High wrote: Hey all. I was under the impression that PHP processes all php code first before handing HTML processing over to the browser. http://www.php.net/manual/en/ref.outcontrol.php Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Sorting Recordset by a calculation between 2 Records
vernon wrote: I think that maybe I should explain the fist Zip comes from a session, here I've defined the variable. I use the caluation in the code to get the distance and then loop the recordset so that the distance is created each time the record loops through. I have taken many things from the file and am only looking for what we discussed, to sort the records by distance. I see. When you have a collection of items, the best place to put them is in an array. I assumed that you were going to be putting them into an array anyway, so my solution simply explained a different way of putting them into an array so that you would easily be able to determine the distance if given any element in the array. There might be ways to solve your problem without using arrays, but I wouldn't waste any time investigating them. Use arrays for this, that's why they exist. I've CC'd this back onto the list since this kind of discussion can be helpful for others who are learning too. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] nstalling PHP
Marc Bakker wrote: Hello all, I installed PHP, Apache and MySQL. I read the install.txt file that came with php and changed the default values in php.ini and httpd.conf. When I restart Apache and type my local website (127.0.0.1/index.php) IE comes with a 'Save file As' dialog box. Instead of parsing the php code and returning html code, Apache returns the index.php file! Does the AddType line in httpd.conf so that files ending with the extension .php are processed by the PHP binary? You should have a section in your httpd.conf that looks something like this: IfModule mod_mime.c # a bunch of lines go here # a bunch of lines go here # a bunch of lines go here # a bunch of lines go here # a bunch of lines go here AddType application/x-httpd-php .php .php3 #--- you need this line /IfModule Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Using PHP to get a word count of a MSword doc
Brad Wright wrote: Thanks for the reply Rene, Any change of a code sample of how u did this?? Im not at all experienced in Java. According to the manual, PHP does have some tokenizer functions: http://www.php.net/manual/en/ref.tokenizer.php However, the documentation appears to be lacking as they are still under development. Using it might be somewhat straightforward if you are accustomed to using a tokenizer in another language (like Java) but if not, it's really a little too difficult to explain in an email. A less elegant but ultimately quicker and probably more reliable solution might be to investigate some kind of external word-counting program that knows how to parse .DOC files (good luck on that part), and call this from your PHP script using system(). Catch-22: the only libraries I am familiar with that can parse .DOC files are the Jakarta POI libraries, which are written in Java. But I am sure that if you scour the web you can find some Perl, Python, or maybe even PHP-based solution. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] sorting results in PHP
bill wrote: Hi André, Sorting like that doesn't get it sorted by date. Each row has a lot of fields. It actually needs to be sorted three times by three fields, Year, Month, and Day. Because the query uses a GROUP BY statement, I can't sort it in the query. MySQL offers a DATE column type. You can extract a day, year, or month from this, without having to maintain three separate tables, using DATE_FORMAT. You can also sort by DATE in the query. Would this not be better for your situation? Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] A faster way to Redirect pages
Poon, Kelvin (Infomart) wrote: I know this topic was discussed but I deleted my previous mail so I can't go back and review them. STFA: http://marc.theaimsgroup.com/?l=php-general My question is, is there a faster way to redirect html pages other than just using meta HTTP-EQUIV=REFRESH CONTENT=1; URL=login.php ? Is there any way we can do that in php so that it redirect FASTER? Right now I set the redirect time to be 1 sec, but for some reason it still takes kind of long until it actually redirects, I was wondering if there is any other way I can do this faster. Yes, check out the header function. You will pass it a string argument: $my_url = http://php.net/header;; // your URL goeth here header(Location: $my_url); Note that you have to call header /before/ you send output to the browser. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Working with dates
Brad Harriger wrote:
I have two variables, $StartDate and EndDate that contain values read
from MySQL Date fields. How can I determine if a value entered by the
user is between the two dates? I'm using PHP 4.0.6.
if ($user_input $StartDate
$user_input $EndDate) {
// do something
}
Erik
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Looking at individual chars of string
Bix wrote:
Is it possible to look at individual chars of a string?
eg: $str = 12345;
print $str_1 // Gives 1
print $str_2 // Gives 2
Try this:
print $str{0}; // gives 1
print $str{1}; // gives 2
Erik
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: Fw: [PHP] Looking at individual chars of string
Kevin Stone wrote: Actually as far as the computer knows strings *are* arrays. Access any character within a string in the same mannor as you would access an element in an array. For example: $str = hello world; echo $str[4]; // prints o echo $str[6]; // prints w That works but is deprecated. Use curlies. http://www.php.net/manual/en/language.types.string.php#language.types.string.substr Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] What is the difference: include()
Charles Kline wrote:
What is the difference as in... why one or the other?
include('somefile.php');
include(somefile.php);
Just wondering...
If you had a constant named somefile or php and you use the second
syntax, the constant would be interpolated/evaluated to the value of the
constant.
Generally I always use single quoted strings unless there's some need
for double-quoted strings (like if I want to embed a variable) so
something like this can't happen.
Also good idea to only use capital letters for constants.
Erik
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] What is the difference: include()
Erik Price wrote: If you had a constant named somefile or php and you use the second syntax, the constant would be interpolated/evaluated to the value of the constant. Generally I always use single quoted strings unless there's some need for double-quoted strings (like if I want to embed a variable) so something like this can't happen. BTW, I'm talking out my butt here, but it might be true. The advice is still sound, regardless. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] What is the difference: include()
CPT John W. Holmes wrote: Well, the first part is out your butt... :) Yep. I tested it after making the assumption, sure enough I was WRONG. I've got to keep my butt under control, it's getting a little out of hand. To the OP, sorry 'bout that. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] copy ...
John Taylor-Johnston wrote: Captn John, What the difference? I recognise the code from my attempts at Perl. What's the diff between ^ and *? Is there a doc I can read up more on? ;) Swabbie John Cpt John W. Holmes wrote: What about eregi(TI(.*)¶,$line,$m) might want to use eregi(TI([^¶]*)¶,$line,$m) The first one says eat TI then any number of characters until you get to the last ¶ in the target string, then eat that one too and stop there. The second one says eat TI and then any number of characters that isn't a ¶, then when you finally get to one, eat it too but stop there. As for your doc, the definitive guide is http://www.oreilly.com/catalog/regex2. No, it's not a free web page somewhere, but it /will/ make you a master of regexes, something you can carry across all languages (except Perl6 :). I count it as possibly the most useful book I've ever read. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Loop Problem
[EMAIL PROTECTED] wrote: Ok, here's what I got. I'm trying to create an entire site that grabs all it's information (Page content, titles, link info, etc.) from a MySQL database. In this site I would like to have sub pages of master pages. For instance, Page 1 is a master page, Page 2 is a sub page of Page 1, and Page 3 is a sub page of Page 2 which is a sub page of page one. Now I would like to display this entire hierarchy if possible. Here's what I have but either I get an infinite loop or it doesn't work worth a damn ? mysql_connect(127.0.0.1,webuser,); $query=SELECT * FROM PageInfo WHERE PageID'0' and PageID=$MasterPage ORDER BY PageID; I might be mistaken, but it looks like $MasterPage hasn't been defined at this point. This should be giving you an error. ($MasterPage gets defined later, but...) If you have your error-reporting turned off, it might not throw the error, so you are getting all the way to your DB. Try turning your error-reporting up and seeing if this causes you problems. The other thing is I don't understand your query -- why are you selecting where PageID is greater than something and at the same time where it is equal to something else? That is redundant. Finally, in your query, remove the single quotes around the 0. You don't need them, and it may be asking MySQL to treat the 0 as a character or string rather than an integer (and the column type is an integer). I'm not really definite on that last one though (more talking out the butt, I suppose). Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] complicated but fun, please help.
Daniel McCullough wrote: Where I am having problems at is when they need to update the poppasswd, which is a IMAP or QMAIL file. Plesk has files that will update the system, but it seems that I using the exec() and system() I can access those pl files. From the command prompt it works fine, html/php file doesnt work. Any thoughts? I would really appreciate the help, I'm doing this as a favor and would like to clear this off my plate. You probably are logged into the command prompt as a different user than what the PHP binary runs as. If the PHP binary runs as a user named apache, and you log in as dmcullough or root, and the commands you are trying to execute are restricted only to being run by dmcullough or a group that dmcullough is in but apache is not, then PHP won't run them. I'm assuming that you are using the system() or exec() commands, your email is a little difficult to understand in that respect... sorry. Erik -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] How to break out of nested loops
Bix wrote:
I have a for loop within a for loop, and need to break out of both
together...
for ( blah ) {
for ( blah ) {
if ( true ) { break; } // only breaks out of this loop, how can I break it
out of both loops.
}
}
break accepts an optional numeric argument which tells it how many
nested enclosing structures are to be broken out of.
from http://www.php.net/manual/en/control-structures.break.php
Erik
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] function getting redeclared
Hi,
I have a problem where I am getting the following error, and I was
wondering if anyone has seen this one before and can help me out.
Fatal error: Cannot redeclare isvalidphonenumber() (previously
declared in /home/bluekomo/public_html//classes/Registrant.class:360)
in /home/bluekomo/public_html//classes/Registrant.class on line 360
I have a script, registration.php, which calls require_once on the
Registrant.class file mentioned in the above error message. The
Registrant::setPhone() method is called more than once. Since it is
called more than once, the function isValidPhoneNumber() defined
within setPhone() is defined more than once, which I suspect is the
source of the problem. Does PHP not allow you to define a function
within a function and then call the enclosing function more than once?
Here is the relevant section of code:
354 /**
355 * sets the phone property
356 */
357 function setPhone($phone) {
358 // TODO: determine if these formats are acceptable
359 // TODO: account for extensions (separate form field?)
360 function isValidPhoneNumber($num) {
361 $valid = false;
362 if (preg_match('!\d{9,9}!', $num)) {
363 $valid = true;
364 }
365 if (preg_match('!\(?\d\d\d\)?-?\s*\d\d\d-?\s*\d\d\d\d!',
366 $num)) {
367
368 $valid = true;
369 }
370
371 return $valid;
372 }
373
374 if (isValidPhoneNumber($phone)) {
375 $this-phone = $phone;
376 }
377 }
I am using PHP 4.3.0 on a RedHat machine with Apache 1.3.x.
Thanks for your help, it's been a while since I've used PHP!
Erik
--
Erik Price
email: [EMAIL PROTECTED]
jabber: [EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] function getting redeclared
On Tuesday, February 18, 2003, at 10:27 AM, Ford, Mike [LSS] wrote: I have a script, registration.php, which calls require_once on the Registrant.class file mentioned in the above error message. The Registrant::setPhone() method is called more than once. Since it is called more than once, the function isValidPhoneNumber() defined within setPhone() is defined more than once, which I suspect is the source of the problem. Does PHP not allow you to define a function within a function and then call the enclosing function more than once? Well, it kinda does, but as it doesn't limit the scope in any way there's not really any point. Besides, it can lead to the kind of problems you're experiencing. Just declare the two functions sequentially in your include file. Okay, so PHP stores all functions that are not class methods in a global namespace? Or does it even do this with methods? Just curious so I don't depend on anything I'm used to from other languages thanks! Erik -- Erik Price email: [EMAIL PROTECTED] jabber: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: recursion?????
On Tuesday, February 18, 2003, at 10:58 AM, Johnson, Kirk wrote: The latest survey I've seen indicates that about 11% of browsers have JS disabled. About the same percent have cookies disabled. Too many for my tastes. Probably 8% of browsers have JS and cookies disabled for a reason (knowingly) and therefore can be considered the most dangerous segment of users. (Knowledge being power and all.) Erik -- Erik Price email: [EMAIL PROTECTED] jabber: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] MySQL DB Schema
On Tuesday, February 18, 2003, at 12:23 PM, Phillip S. Baker wrote: Is there an easy way to pull out the schema of a MySQL for viewing?? If you have access to the command line (either directly or via the system() function), try this: bash 2.05 $ mysqldump -t databasename --user=username --password Erik -- Erik Price email: [EMAIL PROTECTED] jabber: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] MySQL DB Schema
On Tuesday, February 18, 2003, at 12:39 PM, David Otton wrote: You want the tables and the relationships between them? Not easy to get the links because of the lack of foreign keys in MySQL. You can add a comment to your table with the COMMENT modifier, which gives you 60 characters to describe your table's relationship to other tables. (In a table named registrants, you could have the comment registrants.user_id = users.user_id ) http://www.mysql.com/doc/en/CREATE_TABLE.html Erik -- Erik Price email: [EMAIL PROTECTED] jabber: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] escaping quotes for redisplay
Hi, I am running into a problem, that I'm certain I've had before but for some reason don't remember how to handle. If anyone can advise me on what to do here, that would be great. I have a PHP script that accepts some user input and validates it, and if the validation fails, it re-displays the form. In the form, the text fields' value attributes are set to the user's input so that the user doesn't have to fill everything out again. The whole system works great, and I'm sure you've all seen it a hundred times before. The problem happens when a user enters a single quote, such as in the string O'Reilly. Re-displaying this value in the value attribute of the form, like this: input type='text' name='publisher' value='O'Reilly' / is clearly invalid HTML, and it shows when the page is rendered in the user's browser (only the O gets through). If I turn on magic_quotes_gpc or use addslashes, the output is like so: input type='text' name='publisher' value='O\'Reilly' / And of course, when rendered, simply allows the O\ to get through. I can solve this problem by using double-quotes instead of single-quotes for my attributes, and that is probably what I'm going to have to do. However, this means I can't let users enter double quotes, or the same thing will happen. In other fields, double-quotes might be necessary. Is there any other solution? Thanks, Erik PS: I am using htmlentities() on the output before displaying it in the browser, but it doesn't apply to singlequotes. I suppose I could str_replace it, but I'm wondering how other people handle this situation -- Erik Price email: [EMAIL PROTECTED] jabber: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] does a form submit from a http page to a https ensure secure data?
On Tuesday, July 2, 2002, at 09:48 PM, Richard Lynch wrote: My old ISP had SSL on another server (or at least directory) and personally vetted every line of code that went on it. Royal PITA, but more secure. What does vetted mean? I didn't see it in the Jargon File so maybe it's OT but I'm curious. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Setting a cookie and redirecting
On Tuesday, July 2, 2002, at 11:10 PM, Justin French wrote: on 03/07/02 11:54 AM, Richard Lynch ([EMAIL PROTECTED]) wrote: Rule of Thumb: If you have to do header(Location: ...) you have a design/engineering/organizational problem in your code/pages/site. I'm sure a zillion people will disagree with this rule I agree, except there's one exception to this that I can't see a way around. When dealing with form submissions the receiving file needs to validate all the code before anything is sent to the browser, update the database (or whatever) and then redirect to itself with some sort of GET flag that issues a thankyou note or something. Otherwise people can hit refresh and post the data twice, or 10 times :) Justin! That's a great idea. No one ever mentioned that to me before (and I've been on and off this list for months). Or actually, I think YOU mentioned it once but I didn't understand it. So let me ask: do you have one giant script that validates all data, depending on the variables sent to it? Or do you have a formcheck script for each individual form? This is a great way to stop someone from hitting refresh and resubmitting their POST data accidentally, since you've got that GET flag which basically says do not process this form! It's not -secure-, since anyone can remove this flag (even if you used POST), but it will work for Joe User to stop him from accidentally resubmitting. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: synchronizing php functions
On Wednesday, July 3, 2002, at 04:08 AM, Philip MacIver wrote: The problem is that sessions are local to the clients machine Huh? so if I tried to put this information in the session then the only information that I would get back is the people that are logged in on my machine, not the server (Please tell me if I wrong in what I say here). Therefore I need to be able to but this information in the session and have it available to all sessions (sort of like the way static variables in Java belong to the class and not the individual objects that are created from that class). So if you undersatnd what I'm trying to do here and know of a way to do it I would love to here it. This has been discussed on the list before, and even I think just last week (so check the archives, using server variables asp as your search criteria). Some theories suggest that it would entail a lot of overhead, unless you only have a few users to keep track of simultaneously. Possible suggestions are 1) if the data doesn't change, put it into an includefile 2) if the data is dynamic, be clever and implement this yourself with database-managed persistence (but beware the overhead). Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] $_POST into a formatted string, help!
Oh man I hope you don't shoot yourself when you realize how easy this
is..
foreach ($_POST as $key = $val)
{
$str .= $key=$val;
}
Then just crop the first char off and there you go.
Even easier, though maybe requiring a tiny bit extra memory to deal with
the array:
$arr = array();
foreach ($_POST as $key = $val) {
$arr[] = $key . '=' . $val;
}
$str = implode('', $arr);
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] addslahes and magic quote woes
On Wednesday, July 3, 2002, at 09:40 AM, Jean-Christian Imbeault wrote: I am trying to make my PHP safe against malicious data user inputs. Reading up on this most people suggest using addslashes(), magic_quotes on and other things like mysql_escape_string(); But I have been running into the problem that I mess up the user's input because I use more then one of these functions in succession on the data. Is there any way to prevent the re-escaping/re-slashing of data that has already been escaped or slashed? Turn off magic_quotes and do addslashes() explicitly every time you do a database insert. Then make sure you always stripslash() data returned from a database query. magic_quotes is convenient for newbies, but after a while you'll find it only trips you up, as you've discovered. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] V basic newbie problem
On Wednesday, July 3, 2002, at 10:43 AM, Duncan Ellwood wrote:
My problem arises when I want to fill in the subsequent rows of the
table
with the subesquent rows from the database. How do I create the
recordset
that will pull the info from the relevant subsequent rows for my
columns?
The code for the first row and first column entry is:
?php echo $row_RsSingStanDailybb['DailyBB']; ?
but in the row below in the html table I want to refer to the second
row DB
entry for DailyBB but I cant see how to go about this:( The Repeat
server
behaviour in DW Mx simply puts all the values in one html cell which is
not
what I wish to achieve. Basically I want the html table to match the
database but have only succeeded in getting the first row to display so
far:(
I haven't used DW Mx myself, I don't really like WYSIWYGs. But the way
to do it is use a while loop.
// $db = your connection parameters
// $sql = your query
if (!$result = mysql_query($sql, $db)) {
die('The query failed for some reason');
}
// this part goes through all the data in $result
// and does something with that data on each iteration
while ($row = mysql_fetch_assoc($result)) {
echo $row_RsSingStanDailybb['DailyBB'];
}
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] php and apache path...
On Wednesday, July 3, 2002, at 11:08 AM, Nightshade wrote: Yea,I understood. But my question is: is right that my Document_root (shown in phpinfo) is /var/www/html/ and not /var/www/html/mysite? And if isn't right where I can change this? I'm not sure -- is that the directory that you want to be your document root? I doubt it from what you're saying but nobody else has any way of knowing. If you want your document root to be /var/www/html/mysite and it is currently something else, you need to set your httpd.conf file differently. Or perhaps a .htaccess file can be used. (This is assuming you are using Apache.) Go to www.apache.org and read the httpd documentation there for more information about setting up the document root in httpd.conf. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Another Regex Question (General)
On Wednesday, July 3, 2002, at 12:00 PM, Martin Clifford wrote: Does [a-zA-Z0-9] (yes, I know [:alnum:] is the same) mean that there can be a number, but it has to follow a letter? Or would you just do [a-zA-Z][0-9] to do that? That bracketed construction is called a character class. It represents any *one* of the contained characters. But not more than one. So there is no following at all, since for all intents and purposes the character class matches a single character (unless you use a qualifier like +, ?, or *). Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Other than substr
On Wednesday, July 3, 2002, at 12:35 PM, César Aracena wrote:
I need to show up some data from a DB which consist of phone numbers
with area code. They're stored like () . What is the best
approach to print them into some textboxes so they can be edited? I'm
using substr but area codes (inside parenthesis) goes from 3 to 5
numbers, so sometimes the closing parenthesis is showed and other times
even the first number from the actual number is also showed. Can I use
regex instead? How is it used? I tried to figure it out in the PHP
manual, but it is NOT written in my level of English.
It would be a good idea to store the phone numbers in the DB as two
separate columns of only numbers, for performance and for ease of
coding. One column for area codes (SMALLINT) and one column for the
rest of the number (INT). Then you can add the parentheses or reformat
the numbers as desired.
But if the database is beyond your control, here is a regex that may
help you:
// $number = the whole phone number record from the DB
preg_match_all('/^\((\d+)\) (\d+)$/', $number, $matches);
$area_code = $matches[1][0];
$rest_of_number = $matches[2][0];
Try that, but it's untested.
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Unable to restart httpd after upgrading PHP
On Tuesday, July 2, 2002, at 12:22 AM, Robert Tan wrote: I am running a Sun Cobalt RAQ4 server. The PHP version on it is 4.0.6. I received an error message when I restart httpd after upgrading PHP scripting engine on my cobalt server through the patch that cobalt provided to fixes some security issues that were found on prior releases of PHP for Sun Cobalt server appliance. Forgive my lack of knowledge of the RAQ4 server, but what's stopping you from just rolling your own? The source code install isn't that difficult, and I have a documented log of an upgrade you can use as a guide if you want. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Beginner Sessions Question
On Tuesday, July 2, 2002, at 03:04 AM, Richard Lynch wrote: And, really, $result is about a generic a variable name as $i How about using $user_info or even $user_info_result? Yes, I know every example and every PHP book on the planet uses $result. That doesn't make it right :-) I hear you -- I used to use longer names for my SQL queries -- like $user_update_sql or $filerequest_result. But once I had moved most of my code into object methods and functions (and therefore out of the global namespace/scope/whatever), I realized this really didn't matter as much. In fact, for consistency and neatness, it was better that I use only $sql or $result, since there was only ever one query in the method or function definition, and this terseness was less cluttering to my code. I completely agree if you're putting database calls into the body of a script, but if you can wrap everything into smaller scopes, it's not such a big deal. IMHO. This applies to a lot of variable names, in fact. But I agree, in the main body of the script (global scope) it is best to be descriptive. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Help: Constants
On Tuesday, July 2, 2002, at 04:48 AM, Richard Lynch wrote: Change it back. You'll find a lot more bugs a lot quicker that way. :-) Use E_ALL Might need to transition one page at a time with error_reporting() at the top or something, but migrate to E_ALL. You *will* benefit in the long run. Promise. Except in a production environment, where you really never want your users to see PHP error messages that you haven't coded yourself for the user's benefit. It could reveal just a bit too much about your setup... even filenames are valuable to maleficants. I recommend setting your php.ini to E_NONE and then putting error_reporting(E_ALL) at the top of each of your scripts, and then when the file is migrated to production, comment or remove the line. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] DOCUMENT_ROOT disappeared on me!
On Tuesday, July 2, 2002, at 10:47 AM, David E. Weekly wrote: After many tries, that is what indeed worked, but I'm a little irked, since shouldn't it have been that setting register_global to On in my php.ini would re-enable these base globals? I had to retool all of my scripts. =/ IMHO you're better off, but yes, if you set register_globals = on then you shouldn't need to have retooled your scripts. Did you restart your webserver after you adjusted php.ini? Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Help: Constants
On Tuesday, July 2, 2002, at 10:58 AM, Analysis Solutions wrote: Dude, that's nuts. It creates way more work. Having to put it on each page in the first place, then having to change it before you put it up. Then, there's the possibility that you forget to change it before uploading. OUCH! sheepish In my case that could never happen. First, all the scripts for this site are based on a template, so I stamp out a new template which already has this line on it when I need a new script. But I also never use FTP/scp directly, I invoke scp from some shell/perl scripts I've written which clean up my files for me -- do things like rename the dev version to the prod version, move it to the appropriate directory of the appropriate machine, adjust the permissions appropriately, and do things like strip away certain lines (such as the aforementioned error_reporting() line). So in my case, I *never* forget, since nothing gets moved to production without going through the shell script... /sheepish Set error_reporting to E_ALL in php.ini on the development machine and to 0 in php.ini or .htaccess on the live server. Set it once on each machine and you're good. You're right -- that's a far better way to do it. I do my dev work in a separate virtual host on the prod machine though, so that's why I do it the way I described. (This prod server is a firewalled intranet, as they call it, so is not really public, so I feel okay about doing dev work on it. I'm also kind of an amateur.) Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Executing a php script periodically using crond
On Tuesday, July 2, 2002, at 12:25 PM, Henry wrote: PS. I cannot compile as a binary etc. This configuration is the confi of the shared server I am using which is hosted by a third part. If your PHP is not compiled as a CGI interpreter, then you can't do commandline PHP commands. But all is not lost. You can have the cron job execute a shell script that executes lynx or links or wget, or even just executes the command directly from the cron job, and have that lynx/links/wget request a PHP script that does what you want done. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Executing a php script periodically using crond
On Tuesday, July 2, 2002, at 01:00 PM, Henry wrote: Only one concern. Are there any security issues. And I suppose more importantly, if there are; is there a way to get the php-script to ensure that is is being invoked by my cron deamon. Should I put the page in a directory and use .htaccess to control security. Or can I check the referrer to ensure that it is not being invoked via a browser!! There are always security issues. I have no idea about the details of your system, your needs, or anything else, so I can't tell you anything except to think logically about what you are doing. Does taking the wget path mean that anybody can use links/lynx/wget/telnet/Internet Explorer/Mozilla to execute your script? Most definitely. Be sure that you take this into account when you design it (you may wish to check things like the User-agent, IP address, and other HTTP variables to make sure that it is being executed properly). I'm going to go down the wget path at the moment. Thanks in advance. Good idea -- seems like your only option according to what you've told us. Personally I would probably write a Perl script (most hosts have Perl) to do whatever it is that needs to be done and have cron execute that, this saves you from a whole window of exploit (the web server). But if you don't have Perl or don't know Perl, that's a problem. Good luck, Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Regular Expression Problem
On Tuesday, July 2, 2002, at 01:40 PM, Martin Clifford wrote:
I'm trying to get this darn eregi_replace() to work, but it doesn't
produce any results at all.
I want it to find all occurances of PHP variables. Here is the regexp
$output = eregi_replace(^[\$]{1,2}[a-zA-Z][0-9]+$, b\\1/b,
$var);
As you might guess this is for a syntax highlighting function I am
trying to write. Anyone have any ideas why it's not working? Please
copy me directly, as I'm on the digest. Thanks!
I prefer the PCRE regex syntax, this should do it:
$output = preg_replace('!^\${1,2}\w+$!', b$1/b, $var);
because \w is the same as [A-Za-z0-9_] (though perhaps it is in
POSIX regexes too).
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] find and replace in php
On Tuesday, July 2, 2002, at 01:52 PM, Henry wrote:
Imagine I have a piece of text
Dear [firstname]
Thankyou for purchasing [product] on [date].
We're sure you'll be very [expectation].
Ta Very much.
Whats the easiest way to replace all the things in square brackets with
variables of the same name.
i.e. $firstname, $product, $date, $expectation
Whilst ensuring that if the variable doesn't exist then it will be
replaced
with (absolutely nothing).
Here, I modified the template class I use for my site (very simple) to
do what you want. You need to have a template file that looks exactly
like what you wrote above (EXACTLY), nothing more. Here is a usage
example:
?php
// the following vars have already been defined in your application,
// or are set to empty strings as appropriate:
// $firstname, $product, $date, $expectation
// create a new Template object
$template = new Template();
// specify where our template file is
$template-identifyTemplate('/path/to/file/above');
// set the parameters
$template-setParameter('firstname', $firstname);
$template-setParameter('product', $product);
$template-setParameter('date', $date);
$template-setParameter('expectation', $expectation);
// generate the output string and store in $outputStr
$outputStr = $template-createOutput();
// free memory occupied by the Template object instance
unset($template);
// print our data
print($outputStr);
Here is the class definition:
class Template
{
/**
* @var template
*/
var $template;
/**
* @var finalOutput
*/
var $finalOutput;
/**
* @var parameters
*/
var $parameters = array();
/**
* identifyTemplate
*
* determine which file to use for a template
*
* @access public
* @param string $template path to a template file
*/
function identifyTemplate($template)
{
$this-template = $template;
}
/**
* setParameter
*
* specify a name and a value to swap with that name
*
* this method can be called as many times as you have
* parameters.
*
* @access public
* @param string $name a parameter name
* @param string $value value of the parameter
*/
function setParameter($variable, $value)
{
$this-parameters[$variable] = $value;
}
/**
* createPage
*
* substitute parameter values where parameter names are found
*
* @access public
* @return string template combined with values (transformed)
*/
function createOutput()
{
// read the template into an array, then
// generate a string from that array
$this-finalOutput = implode(, (file($this-template)));
// loop though all the parameters, and
// set the variables from the file to
// their corresponding values
foreach ($this-parameters as $key = $value) {
$template_name = '[' . $key . ']';
$this-finalOutput = str_replace($template_name, $value,
$this-finalOutput);
}
return $this-finalOutput;
}
}
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Have you seen this host?
On Tuesday, July 2, 2002, at 03:50 PM, Tony Harrison wrote: Hi, if you can find a web host that offers ALL these services, i will eat my hat on my webcam to the whole club: Do you know the origin of that expression? It refers to a period when sugar was sold in paper cones, known as hats. So you won't really eat your baseball cap, just the family sugar jar. Usenet Newsgroup. at least 200MB space Perl/CGI support (optional) PHP - note: must have GD library installed! MySQL SHOUTcast web radio Reseller account option at least 300MB per month bandwidth ASP (optional) I don't know about Shoutcast, but Pair.com is supposed to be good. If you can get DSL or some service that doesn't block port 80, you may as well just host your own server (unless you want this for commercial use, in which case why not pay an ISP to host your own server?). Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Beginner Sessions Question
On Tuesday, July 2, 2002, at 04:31 PM, Richard Lynch wrote: Well, yeah, at that point all you have is SQL and Result, because the function has no idea what that SQL is about in any given call... But, personally, I just don't see the point to having a function/class do my database work when it simply: Increases lines of code Increases debugging/maintenance time Decreases clarity of code Reduces performance Reduces flexibility Increases overhead Hm. Could be. I haven't benchmarked it for performance, since in this case there will probably never be more than 20 simultaneous page requests at any given time considering the small number of users. In fact, I'm sure you're right, that performance and overhead are definitely affected. But I think you're mistaking what I said -- I don't necessarily write a function/class specifically to handle my DB work. I write my classes and methods to manipulate objects easily and organize the data, and if maintaining state by doing a database insert (or resuming state by doing a database query) is necessary, well then that gets incorporated into the class. It's not specifically a database abstraction layer, it's just an object, and most of my objects happen to get built from or stored in a database at some point within their lives. And I write a function when I find that I am executing the same code all over again in various places -- like generating a date listbox or something. The effect is that debugging/maintenance time and lines of code are decreased, not increased, and clarity of code and flexibility are IMHO much better when they are safely constrained to class definitions rather than all being in one giant script. But one thing I have learned is that everyone has a different approach to writing code, and objects may not be your thing -- that's okay. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Populate Popup Menu from Database
On Saturday, June 29, 2002, at 11:41 AM, Mike Tuller wrote: What is here is beyond my understanding, and seems like it is a little much for what I need. Here is what my database table looks like: Departments department_id department_name I just want to list the department name in the popup. although I wrote this instruction in response to a question about integrating the listbox with javaScript, ignore the JS stuff, and you will see how to dynamically populate a listbox with database data: http://marc.theaimsgroup.com/?l=php-generalm=102503848224300w=2 Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Keeping Secrets in PHP Files
On Friday, June 28, 2002, at 06:14 PM, Lazor, Ed wrote: The hosting provider could probably implement a solution... Alter the FTP configuration to automatically set the group permission to that of the web server when you transfer files. You wouldn't need to be in the group. You're the owner and can modify your own files. World Read access would be unnecessary. Someone pointed out last week that a maleficant can write a script that reads other files' data [and does something evil with that], since it will be executed as the web server user and the web server user can read all those files. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Javascript to PHP?
On Saturday, June 29, 2002, at 03:13 PM, Jed Verity wrote: I can't find any information on passing JavaScript variables to PHP on the same page (i.e. not through the POST information of a submitted form). Is this because it's not possible? To take the load off the server, I'm trying to do a bunch of string manipulations and loops in JavaScript and then hand that info off to PHP once it's done. How will you communicate with PHP without submitting an HTTP request of some sort? So, really, you will need to submit -something-, though it could be GET data, POST data, or COOKIE data. You can't have JavaScript talk to PHP within the same page since the webserver/PHP forgets all information related to that page as soon as it shoots it to the user-agent. I'm assuming you know how to use JavaScript to set a cookie, and/or make a new request with GET or POST data attached. If not, let me know. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] strip_tags
On Monday, July 1, 2002, at 11:09 AM, BB wrote: OK, this is a 3x3 table pasted in from word! It is against the rules to post HTML code generated by Microsoft Word. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Register globals off
On Monday, July 1, 2002, at 11:30 AM, Adrian Greeman wrote: Would it be true to say that every time an example is given where data is passed on (for forms and so forth) that I can simply replace the variable in the example with $_POST or $_GET? Or do I have to do more? Pretty much. If the data was passed by a get-method form, or through the querystring, then the variable should be in the _GET array (such as $_GET['variablename']). Likewise for post-method forms, and any cookie variable names are now $_COOKIE['variablename']. Server variables like $PHP_SELF are now $_SERVER['PHP_SELF'], and you can read the rest under predefined variables in the manual at the web site. eg if a simple PHP file for handling form input takes in the data using $LastName can I simply use $_POST[LastName]?? It seems to work for a very simple example. But should I read the array into a variable first? Only if you want to -- you can always just refer to it as $_GET['variablename']. In fact this is probably better for memory use. And do I need to do any validation or declaring of variables etc?? [I did have a problem reading in a number - the solution was to put (int) before the POST array name though I don't understand why that was not needed with a string. All POSTed or GETed data is string data, so if you for some reason explicitly need to cast the variable as an integer, then yes, you need to use (int). But in many cases PHP does this automatically. I am also unclear what happens when you send something using header() - does that also go into an array - if so which one and how do I use it? I'm assuming you mean sending some querystring data, like header(Location: http://domain.com/page.php?data=contents;); if so, then yes, you will end up with the string 'contents' in a variable called $_GET['data'] . Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] help with regex in preg_match();
On Monday, July 1, 2002, at 01:37 PM, [EMAIL PROTECTED] wrote:
I got this line that is relly giving me a pain..:
if (preg_match(@siteUserList.cgi\?group=site177(?)@,
$QUERY_STRING))
As you can see it just matches the query string when it looks like
this: siteUserList.cgi?group=site177 (with or without a )
The thing is I need it to match also if after the there is a number
(that will have more than 1 digit)
Ive tried many diffrent thing with \d+ but I can get it to work.. can
somebody give me some light? Thanks.
preg_match('/siteUserList.cgi\?group=site177?(\d\d+)?/', $QUERY_STRING)
that will match the following criteria:
if there is a sign
OR a number with more than 1 digit
OR both an sign AND a number with more than 1 digit
If you only want it to match if there is BOTH an sign AND a number
with more than 1 digit, it should be like this:
preg_match('/siteUserList.cgi\?group=site177(\d\d+)?/', $QUERY_STRING)
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Populate Popup Menu from Database
On Monday, July 1, 2002, at 04:22 PM, Mike Tuller wrote:
Thanks. Here is what I did for future reference.
Good. What you chose to do is exactly what I do except for one
thing... :
$sql = select department_name from Departments;
I generally grab the primary key column value as well, in the same
query, and then I use that as the value attribute for the option
tags:
while($row = mysql_fetch_array($sql_result))
{
$department = $row[department_name];
echo option value = '$department'$department/option;
}
while ($row = mysql_fetch_assoc($result)) {
$dept_id = $row['department_id'];
$dept_name = $row['department_name'];
echo option value='$dept_id'$department_name/option\n;
}
The reason I do this is because I end up using the ID far more than the
name of a database record -- while I might echo the name to the user
where needed (such as in the above dropdown listbox), the ID comes in
handy as a reference in hyperlinks, form fields, etc -- it provides
something that I've discovered is really missing in writing HTML-based
applications: a unique handle on an object. This is very hard to
replicate given the statelessness of HTTP, but with a database record's
primary key, you always have this unique identifier by which to refer to
the object. and a number is more pithy than a name.
It'll avoid situations where someone enters the same name value twice,
too. But it's not really a big deal unless you're doing a lot of work
with a lot of data.
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] extracting data from text file
On Monday, July 1, 2002, at 05:17 PM, [EMAIL PROTECTED] wrote: I have trend this but it does not work properly $fp = @fopen(file.txt,r); $line = explode(\n,$fp); $valueC = $line[0]; $valueST = $line[1]; @fclose($fp); What error messages are you getting? I imagine that since you've suppressed the errors with the @, you will need to remove this to give us any useful information. One other thing, has your file been saved with the appropriate line breaks for your server? In some cases, a file may have DOS/Windows or Macintosh line breaks which are not \n but rather \r\n and \r respectively IIRC. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] securing an 'includes' dir
On Friday, June 28, 2002, at 04:25 AM, Nick Wilson wrote: How might I make an 'includes' dir inside the http root and stop users being able to browse it? chmod go-rwx dirname But this will probably stop the web server from reading the file. Perhaps the administrators can provide a script (SUID) that allows a user to change the group association of the file to that of the web server? Yet without making the user a part of the group itself, otherwise all users would be able to see all of these files... Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] checking
On Thursday, June 27, 2002, at 04:41 AM, Leo wrote:
I have a form and I don't want to insert recording with blank value.
I put:
if ($lastname=) {
$insert=no
}
if ($insert=no){
do not insert;
else
insert;
}
my probleme is in some case $lastname= is true and other case is
false.
I tried with $lastname= but no change. how can I check if a varible
is
empty or not?
http://www.php.net/empty
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Keeping Secrets in PHP Files
On Friday, June 28, 2002, at 09:30 AM, Jonathan Rosenberg wrote: Let's say I am in a shared server environment the provider does NOT have safe_mode turned on. In that case, it seems to me that it is insecure to keep secrets (e.g., DB passwords) in a PHP file that is executed by the server. I say this because any other users of that shared host can read the PHP file obtain the secret. There does not seem to be any way around this (once again, I am assuming safe_mode is NOT turned on). Think about it in terms of the permissions on the file. The people who can read this file are explicitly defined in your permissions. The catch-22 is that the web server is usually not run as root, so it doens't automatically get to see your files -- you need to give it permission to read them just as you would any other user. In a shared system, if you give others permission to read the file, the web server user can now read the file, but so can everyone else. However, if there were some way for you to change the group association of the file to, say, the websecret group, and then you could close off the read permissons of others on that file. As long as the web server is a member of websecret, and you grant read permissions to the group for that file, then the web server can read it. The trick is that in order to change the file's group association to websecret, you probably need to be either root or a member of websecret, unless the system admins have provided some kind of script that does this on your behalf. Which means that anyone else who has this ability can read the file too (since they are a member of websecret). It's tough. Shared hosting security is a difficult issue. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Another Pop-Up problem..
On Wednesday, June 26, 2002, at 08:39 PM, Doug Coning wrote: I've got it to work now where it will pop up a window. However, now it returns the same record each time. So which ever record you click first, it will bring that window up for each item. How do I reset or clear out the value so that when you click a different link it brings up the proper record. You can see what I mean by visiting the code at: http://www.coning.com/phptest/73things_view5.php. Doug, I took a look at your page. The problem doesn't appear to be with your JavaScript, it seems to be a problem with your PHP. Try directly opening the following links in your browser and you'll see what I mean: http://www.coning.com/phptest/73things_thread.php?threadID=13 http://www.coning.com/phptest/73things_thread.php?threadID=14 http://www.coning.com/phptest/73things_thread.php?threadID=15 Even though the threadID GET value is different in each one, the same data is coming up. So you need to check your back end code. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Display Records in Multiple Pages
On Thursday, June 27, 2002, at 02:56 AM, Justin French wrote: Use the LIMIT function in your SELECT query... check out the MySQL manual... and then generate back / forward links depending on your current offset. It should be expandable to 1000 records without any mods to the code. Justin, Out of curiosity, why is it only expandable to 1000 records? What happens after that? I thought that (in theory) you can keep going with this kind of scheme. Or is there a limitation in MySQL that I'm not aware of... ? Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Compiling PHP with XML????
On Thursday, June 27, 2002, at 03:14 AM, René Moonen wrote: Compiling and installing Expat and Sablotron works fine (so it seems) but after that I get errors compiling PHP with XSLT options. Compiling without the XSLT options works just fine. These are the PHP options I use: --prefix=/usr/local/php --with-config-file-path=/usr/local/php --with-apxs=/usr/sbin/apxs --enable-track-vars --enable-magic-quotes --enable-debugger --enable-xslt --with-xslt-sablot The last two are the ones that I have added to allow for XSLT Am I missing something? This is a command history from when I added XSLT to my dist. It's older (PHP 4.1.2) but it should still work with newer PHP distributions: 2002-03-11 XSLT upgrade log for PHP At this time, the /usr/local/src directory has the following directories (all expanded from tarballs): apache_1.3.22/ expat-1.95.2/ mysql-3.23.46-pc-linux-gnu-i686/ php-4.1.2/ Sablot-0.90/ tarballs/ /usr/local/apache/bin/apachectl stop /usr/local/mysql/bin/mysqladmin -u root -p shutdown (shuts down the daemons so we can work on them) cd /usr/local/src/ (this is where we start) pushd expat-1.95.2/ (enter the expat source directory) less README ./configure --help ./configure make make install popd (back to /usr/local/src) (always good economy to read the docs and see what ./configure options there are, though none were actually chosen) pushd Sablot-0.90/ (enter the Sablotron source directory) less README ./configure --help ./configure make make install popd (back to /usr/local/src) (same as for expat) pushd apache_1.3.22/ (enter the Apache source directory) rm config.cache make clean pushd ./src/modules/php4/ (enter the php4 module source directory within the Apache source directory) rm config.cache make clean popd (return to the Apache source directory) (the rm and make clean commands were probably not necessary, but I wanted to be sure not to use any old data) ./configure --prefix=/usr/local/apache (execute the ./configure script to show Apache where to be installed, but do not make yet) pushd ../php-4.1.2/ (jump out of the Apache source directory to /usr/local/src/php-4.1.2) rm config.cache make clean (clean up the php-4.1.2 source directory) ./configure --with-apache=/usr/local/src/apache_1.3.22/ \ --with-mysql=/usr/local/mysql/ \ --enable-sockets \ --with-zlib \ --with-xmlrpc \ --enable-xslt \ --with-xslt-sablot make make install popd (back to the Apache source directory [/usr/local/src/apache_1.3.22]) (create the PHP binary with the ./configure options for using MySQL [requires zlib on RH 7.2], socket functions, XML-RPC, and XSLT with Sablotron, and then install the binary into the modules source directory in the Apache source directory) ./configure --activate-module=src/modules/php4/libphp4.a \ --enable-module=so \ --enable-shared=max (run the Apache ./configure script again, this time specifying that PHP is to be installed as a static module and that Apache should be compiled to accept later dynamic shared object modules [no, the libphp4.a file does not exist yet but ./configure it anyway]) pushd ./src/modules/php4/ make (compile the PHP module into Apache, no 'make install' necessary) popd (back to the Apache source directory, /usr/local/src/apache_1.3.22) make make install (final compile and install of Apache with the now-embedded PHP module) popd (back to /usr/local/src) cd /usr/local/mysql/ ./bin/safe_mysqld --user=mysqladm (start mysql daemon, safe_mysqld can only be executed from /usr/local/mysql) /usr/local/apache/bin/apachectl start (start Apache) Then test to make sure that MySQL and Apache are working by requesting a phpinfo() page or MySQL-generated page. Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] MySQL fetch data
On Thursday, June 27, 2002, at 04:20 AM, Jefferson Cowart wrote: Is there any way to return all the rows returned by a mysql query with one command. Currently I have to run through a for or while loop the same number of times as there are rows and take that row and copy it to an array. I end up with an array of arrays but it seems like it would be a common enough problem that the function would already exist. You will probably always need to use a looping construct to grab your data (otherwise how will you assign each value to a variable?). But you may find it easier to use mysql_fetch_object(). http://www.php.net/manual/en/function.mysql-fetch-object.php Or maybe not. It's a matter of preference and performance (I think the object version is a bit more expensive). Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] OOP assistance request
On Thursday, June 27, 2002, at 04:44 AM, Andrew White wrote: On Wednesday, June 26, 2002, at 04:48 pm, Erik Price wrote: My problem is that I have no way to know which type of object to instantiate in advance -- all I have is this primary key. Using the primary key to instantiate an object, I can extract the ProjectType primary key, and then I could instantiate a new object of the appropriate type, but then I'd have two objects (and that seems like a lot of overhead). I'd rather just have the client code instantiate the right type of object from the beginning. Use a static function in the project parent class and a column in the table which stores the classname of the project I did not realize that you could access a class method as a static method in this fashion! (Class::method()) Enlightening. So I can use Project class code without even having any instantiated Project objects. That is really cool. However, this is really the same thing as if I did the same thing from the client code. In other words, it does require an extra database call to determine the type of Project, to help me decide which kind of project to instantiate. This way it just puts that code into the class definition to keep my client code from getting cluttered. I do not believe it is possible to cast an object from one user-defined data type to another in PHP -- this is what my own testing has shown, though I have not heard confirmation. This would really be the ultimate solution. But still, the above is a good workaround. My alternative is to simply use the Project class and -not- subclass the different types of projects, and then use a big ugly Project::display() method that does its own testing of the type of the object and performs certain code depending. That would save me the extra database call at least, so for performance it might be worthwhile. Thanks very much Andrew. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP and OOP
On Thursday, June 27, 2002, at 08:10 AM, Kondwani Spike Mkandawire wrote: I still don't get what the big fuss of OO programming is about I do agree that it is stylistic hence helps someone else who hasn't written your code to follow up on what you are doing... But so far the programs I have been writing in OO supported languages have been written and scripted on an as is needed basis... i.e. I have the basic idea then I simply start scratching down methods/functions I have never sat down and drawn a single UML diagram on a project that I am about to do... How many of us have done so? Could some one please point out another feasible advantage of OO programming a part from the fact that I would make someone else's work easier by using this style of programming... I never used UML for the project I'm working on (and am almost finished with), but I sure wish that I had. I just didn't know UML or even OO programming when I started. Basically I started out writing a giant application with procedural code, and then as I learned how to use objects, I cleaned everything up by using objects to represent most of the actors and data. But because I never properly modeled my project (my fault I know, I'm not blaming anyone else but me), it is far uglier than I would like. This assignment is almost done, but I have been learning Java in my free time and it is my plan to properly model this project and rewrite it in Java as an exercise. Maybe not implement every single detail, but get the bulk of it. Life is one big learning exercise anyway Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Detecting Browser Type/OS from HTTP_USER_AGENT
On Thursday, June 27, 2002, at 08:57 AM, Patrick Teague wrote: Has anyone else done something similar to this? The main purpose for doing this is to find out what clients are using the most so that we can provide content more specific to the browsers. I've noticed things that work on Win MSIE don't look half the same on Mac MSIE, not to mention the differences between MSIE, Konqueror, Mozilla. The other reason is I have people developing stuff on Mac, Linux, Windoze. I'm trying to put together something sane to mesh all of these together. The best thing you can do is make every attempt to code to the standards, and then hope that the browsers do their best to meet those standards too. You could argue with my opinion on this, saying that Well that's just not realistic because everyone's using IE or whatever, but then something like AOL's decision to use Mozilla as its internal browser engine comes along and changes the whole paradigm. Boom, you now have to change your entire site because now most people aren't using IE. Coding to the standards is your best option. In my opinion. Good luck. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] performance, memory objects
Since we are on the topic of objects with PHP, what is the best way to
free the memory being used by an object?
A lot of examples use unset($objReference). But when freeing the memory
used by a large string, it's best to assign that string's reference
variable to an empty string, ($str = ;) according to Programming PHP
by Tatroe and Lerdorf. I was surprised that this book didn't mention
freeing memory used by objects (or if I'm wrong, please point me to the
right page).
Here's a sample from my script I'm working on right now... is assigning
the object's reference variable to null redundant or not worthwhile?
// $result = a MySQL result resource
$photos_string = ;
while ($row = mysql_fetch_assoc($result)) {
$photo_obj = new PhotoItem($row['photoitem_id']);
$photos_string .= $photo_obj-display();
$photo_obj = null;
unset($photo_obj);
}
// do something with $photos_string
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Best Delete Confirmation Script
On Thursday, June 27, 2002, at 12:48 PM, Shane wrote:
I would like your opinions on the best way to implement an Are You
Sure You Want To Do This? dialog for an Admin user when they go to
delete a record in a DB.
Do you find that a whole page is usually required for this, or does
anyone have any nice pop up solutions for such a query.
Sure... I hate doing these things too, but when Joe Big Boss gets a bit
trigger happy and kills some data he mistakenly thought was a different
record. You KNOW who is going to hear about it from on high. :^)
It's such a pain in the ass, isn't it? Unless you're using JavaScript,
it's like an extra step, and you probably want to re-display the data
that's being altered, so you really end up having to make another whole
page in order to do it.
One way that I like to do it is this:
Most of my scripts are really giant switch() statements, and depending
on the action variable passed in the querystring, different things
happen. So...
http://www.domain.com/addrecord.php?action=intro
The switch statement reads the $_GET['action'] variable and knows to go
to the intro block, where I display the instructions for the page.
The next one would be
http://www.domain.com/addrecord.php?action=form
and is accessible from a hyperlink generated in the intro section.
This displays a form that lets the user do some data-changing
operation. The form is of POST method, and the form's own action
attribute is
$_SERVER['PHP_SELF'] . ?action=confirm
So now all the user input is in the $_POST array and the action
variable's value is add, so the master switch() statement sends the
code to the add section. What happens here is, some checks are done
on the data to see if it is valid, and if it is valid, the changes are
echoed back to the user as a confirm page with a button to resubmit
one final time (all the values are thrown into hidden variables).
However, note that if the input is NOT valid, we don't have to re-do the
code to display the form again, because we can just echo back the error
messages and use the switch() statement's ability to drop down to the
next block, which is case 'form':. That's why I like switch(), and
disagree with Python's lack of it, but whatever.
Finally, if the user did have the correct data, and the confirm form
with the hidden vars is submitted, it goes to
$_SERVER['PHP_SELF'] . ?action=commit
and the data is actually inserted into the DB in the commit block of
the switch statement.
The code looks like this:
switch($_GET['action']) {
case 'commit':
// enter user's data into DB
break;
case 'confirm':
// error check user input
// if valid, display a
// form action=\ . $_SERVER['PHP_SELF'] . ?action=commit;
// if not valid, echo an error message
// and thendrop down to the next
// block of the switch() (case 'form')
// NO BREAK STATEMENT HERE
case 'form':
// display a form with
// form action=\ . $_SERVER['PHP_SELF'] .
?action=confirm;
break;
default:
// you can also call this one case 'intro' if you want
// display the instructions for this page
}
HTH,
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] HTTP1.1
On Thursday, June 27, 2002, at 01:39 PM, Gerard Samuel wrote: I was wondering if this is a no no according to http 1.1 specs. ie absolute links - a href=http://host/correct_path_to_file.php;somefile/a I briefly looked through through the specs, but it didn't say that links/urls shouldn't be formatted like the first example above... I think it is okay as long as you are staying within the same virtual host. Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] ok what kind of crack is my computer smoking?
On Thursday, June 27, 2002, at 05:09 PM, Rick Kukiela wrote: SO what do i have to do to get php to acknolege the fact that it has been recompiled with new options Did you rm ./config.cache in the Apache source tree? If I were you, I'd remove the source trees you have, re-extract the tarballs, totally. Not just for the modules but for Apache too. It's just easier unless you have customized code in your Apache source tree. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: One more 'Headers Already Sent' error. :-(
On Tuesday, June 25, 2002, at 06:07 PM, Brad Melendy wrote:
Well, I have traced this down to line 4 in the following code
'include(header.html);' which just includes my navigation bar. If I
comment it out, everything works great, if I leave it in, I get the
error
Headers Already Sent. The file it purely html. What could be the
problem??
Thanks in advance!
You want this script to redirect twice? Or do you just want it to
redirect the first time, but have the second header() function be called
if the first one doesn't? Then you should call exit() after the first
header() function to keep the rest of the script from executing.
This is also generally a good practice after a header('Location: ') call
because the user-agent doesn't HAVE to respect the header and redirect,
so it protects your stuff. Always feature an exit() with a header-based
redirect.
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Passing Form Values
On Tuesday, June 25, 2002, at 06:56 PM, Phillip S. Baker wrote:
When the form is submitted I want to values passed to a pop-up window.
I am aware of the need for Javascript for the pop-up window, but how do
I get the values from the form passed to the new window so I can use
them in further scripts.
I can write the javascript to do the popup window and use the onSubmit
command, but I cannot figure out how to pass the values with a regular
submit button.
Thanks
Pass them along the querystring, so that when the JavaScript popup
window opens and it goes to a certain page, those values are part of
that URL. As GET variables.
// Your PHP vars:
$var1 = 'Metroid';
$var2 = 'Metal Gear';
// Create a querystring:
$PHPqueryString = var1= . $var1 . var2= . $var2;
// echo the browser string for the popup:
print a href=\\ onclick=\openPopup(
. $PHPqueryString
. \Popup!/a\n;
// here's your JavaScript function
function openPopup(queryString)
{
var detailwindow = window.open('./target.php?' + queryString,
'windowname',
'toolbar=no,directories=no,
status=no,menubar=no,resizable=yes,
copyhistory=no,scrollbars=yes,
width=500,height=300');
detailwindow.moveTo('150', '150');
}
Now in your new script you can access these GET vars from PHP or from JS!
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Security problem?
On Tuesday, June 25, 2002, at 08:26 PM, Analysis Solutions wrote: I usually run PHP as CGI. My secure files are kept in a directory that's not under the */docroot. Thus, they can't be gotten to through the web server at all. Plus, the secure files are chmoded 600 (which means they can be read/written only by the owner). Thereby, the only user on the server who can read them is me. Tradeoff, huh? If I understand it correctly, you can't keep the files outside the docroot if you're using mod_php b/c the web server itself is what fetches the file (therefore it needs to be in the docroot). But mod_php is faster than CGI PHP and can handle more simultaneous requests. Right? Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] appending to XML file before closing tag
On Tuesday, June 25, 2002, at 08:42 PM, Brian White wrote: I was actually thinking about this the other day - every now and again I find my self yearning for SGML, where you could have just declared the wrapping element end tag omissable, and then you would never have to worry about it - basically the end of the file would imply the existence of the end tag (sigh ) Yes, but that makes parsing very difficult -- if you're expecting to find a closing tag, it should be there. You'd have to write a special set of XML-handling functions or a special library to cover this unique breach of the XML rules, since most XML modules (for Perl, PHP, Python, Java, whatever) expect well-formed documents. XML is pretty verbose, yes, but the rewards of this are consistency -- as long as the document is well-formed, it should be pretty easy to extract the data from it without writing special code to handle these kinds of exceptions. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: MySQL Problem with PHP
On Wednesday, June 26, 2002, at 08:58 AM, John Holmes wrote: I just preg_replace(/\'/,\',$text) and all was good :o) That's what addslashes() is for. It handles single and double quotes, backslashes, and nulls, so you won't have any problems... Plus IIRC it's a C extension so it'll run faster anyway. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Seperating presentation from logic
On Wednesday, June 26, 2002, at 09:05 AM, John Holmes wrote: I disagree. Maybe I'm just not getting it, or understanding the FULL POWER of xml/xslt. It just seems like it's adding in an additional layer that you don't need. It seems so dependent on browser versions, and parser versions, etc. Just make a plain HTML template and a small template parsing script to insert the variables you need. Pattemplate is pretty close to XSL, but I haven't seen any speed comparisons on it. Yeah, but what if you want to output to a format other than HTML? For instance you want to generate a PDF invoice, which is emailed to the user, but you also want to display that invoice to the user? Should you have two separate files/sources of data? You could have one XML file, and use XSL to make an HTML document which appears in the user's browser and a PDF which is emailed to them. The point of XML is to look beyond the web browser as a point where the user needs data. PDAs would benefit from non-HTML formatted stuff (too small a screen for most web pages), cell phones have their hardly-used WML, there are tons of different print formats like PDF or PostScript, plus alternative formats like troff (for man pages) and POD (for Perl manpages) and others. XSLT lets you output from one source file to any desired format. If you need versatility in the output of your data, XML can really help you. Plus, it doesn't depend on browser version if that's what you're worried about -- it can be done server-side: use PHP to perform the transformation before it gets to the user if it's going to their browser. That's why some XML-based sites let you choose whether to view the page in HTML or XML (so that if you want to use a spider or script to parse the data on the web page instead of looking at it in a browser, you can do that much more easily with the XML formatted output than the HTML formatted output). Later on down the road, when (hopefully) all browsers incorporate an XSLT processor, the burden of performing the transformation can be handled by the client. Not that client-side technology has been very successful at standardizing, in consideration of different JavaScript implementations, CSS implementations, and even Java Virtual Machines (witness Microsoft consistently refuse to ship a decent JVM with their OS, even though they are freely available from the Sun web site). That's why server side stuff like PHP will probably always be invaluable. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Web Services
On Wednesday, June 26, 2002, at 10:49 AM, Laurent Drouet wrote:
I would like to know if there is a way to request data from a web
services
for example http://glkev.net.innerhost.com/glkev_ws/Currencyws.asmx
using php without java ?
If you know the web services API, you just send your request. It
shouldn't matter whether you're using Java, PHP, Python, even VB or even
Telnet to generate your request -- most web services accept an HTTP POST
message consisting of XML code which is used to perform some kind of
action.
There are two things you can do -- either use the cURL functions (your
PHP binary must be compiled with cURL enabled to do this), which give
you an advanced set of URL accesses, or open a socket to the remote
machine with the web service and send a stream of POST data that way.
You can use Rasmus Lerdorf's postToHost function (this may as well
just become a PHP function, it gets referenced so much), which I have
appended to this message.
Either way, just generate your XML string and fire it at the remote
machine. You will need to write code to handle the response, obviously.
# ===
# PostToHost($host, $path, $data_to_send)
# ---
# It is a trivial little function.
# -Rasmus
# ===
function PostToHost($host, $path, $data_to_send)
{
$fp = fsockopen($host,80);
fputs($fp, POST $path HTTP/1.0\n);
fputs($fp, Host: $host\n);
fputs($fp, Content-type: application/x-www-form-urlencoded\n);
fputs($fp, Content-length: . strlen($data_to_send) . \n);
fputs($fp, Connection: close\n\n);
fputs($fp, $data_to_send);
while(!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
}
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] OOP assistance request
Hi,
I'm making this request for help because my experience with object
oriented programming is very limited. I'd like to describe my situation
and then ask a question at the end of it, any comments or input are very
appreciated.
My application needs to keep track of different kinds of projects, and
display different attributes depending on what kind of project it is.
Therefore, I have written a base class called Project.
The four kinds of projects are PrintProjects, DesignProjects,
WebProjects, and PhotoProjects. Each of these extend the Project class,
so they are child classes. I intend to write my code to use
polymorphism so that a single method call, $object-display(), will
generate the appropriate output depending on which child class it is
being called upon. So really, the Project class is just an abstract
class and is not really intended to be instantiated, but PHP doesn't
really enforce a difference between abstract classes and true classes.
And each project has a corresponding record in a MySQL database, so I
have a convenient primary key for every Project object (regardless of
what kind of project it is).
HOWEVER --
Because this is PHP/HTTP and not Java, there is no true state. So the
way that I instantiate a Project is by passing the primary key of the
object as an argument to the constructor of the Project. The
constructor can then flesh out the object as needed, and ideally there
will be different flesh out code depending on the type of object. My
problem is that I have no way to know which type of object to
instantiate in advance -- all I have is this primary key. Using the
primary key to instantiate an object, I can extract the ProjectType
primary key, and then I could instantiate a new object of the
appropriate type, but then I'd have two objects (and that seems like a
lot of overhead). I'd rather just have the client code instantiate the
right type of object from the beginning.
Is there a way to convert a Project object into a PrintProject object --
such as casting it? In other words, I'd like my client code to look
like:
$obj = new Project('87633');
$type = $obj-getProjectType();
if ($type == '1') {
$obj = (PrintProject)$obj; // re-cast the Project into a PrintProject
} elseif ($type == '2') {
$obj = (DesignProject)$obj; // re-cast the Project into a DesignProject
// etc
}
$obj-display();// now the object will call the appropriate
// overriding method because the object is
// now of the appropriate subtype
Is that possible in PHP Namely, the casting above?
Or does my client code need to be able to figure out which type of
project it is (say, from the DB) and then use this to determine which
object type to instantiate?
Thanks very much,
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Compiling PHP with XML????
On Wednesday, June 26, 2002, at 11:57 AM, Scott Fletcher wrote: I looked in the ./configure --help for the xml support. It didn't say but show some options such as disabling xml, using xml with different stuffs. Nothing is being mentioned about enabling xml or something. So, is xml in php supported automatically? Yes. Since 4.1.x at least. But for XSLT you need to get expat and Sablotron and link them into the compile (with the appropriate ./configure options). Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] dynamically creating variable names
On Wednesday, June 26, 2002, at 01:04 PM, Lee P Reilly wrote:
Can someone tell me if it's possible to create variable names from
varaible names? I could work around this problem using some if/else
statements, but I'm interested to see if there's another solution.
Just try it.
for ($i = 0; $i 10; $i++) {
$var{$i} = $i + 6;
echo \$var$i == . $var$i . \n;
}
$var0 = 6
$var1 = 7
$var2 = 8
$var3 = 9
$var4 = 10
$var5 = 11
$var6 = 12
$var7 = 13
$var8 = 14
$var9 = 15
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP does not work??
On Wednesday, June 26, 2002, at 01:20 PM, Scott Fletcher wrote: When I use the hyperlink, test.php?data=yes and I go to this page, test.php but there is no data in this variable, $data. So, the web page I have, most of them are all thrown off becuase of this. I use PHP version 4.2.1. Is there a bug in this PHP version??? Or some changes in PHP that I'm not aware of? Let me know! Use $_GET['data'], not $data. Or turn register_globals = on in your php.ini. Get to know your php.ini, and read the release notes for any software you upgrade -- this is mentioned in the PHP 4.1.x release notes if you want to read them for yourself. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] server security
On Wednesday, June 26, 2002, at 01:33 PM, Phil Schwarzmann wrote: What else can I do to make this server secure? What is this SSL business all about? Any extra programs I should add that might help? Read this from beginning to end. Then you will know what questions you need to ask to make yours system more secure. http://www.w3.org/Security/Faq/ Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP does not work??
On Wednesday, June 26, 2002, at 02:13 PM, Scott Fletcher wrote: I'm using UNIX, not windows, so there is no php.ini in UNIX. Sorry, don't take offense if I ask if you've been living under a rock -- I only use Linux, and there is definitely a php.ini file that you use. I put mine in /usr/local/lib/ . If you follow the source install instructions, you will see that the last step is: $ cp php.ini-dist /usr/local/lib/php.ini Yep, that means you're supposed to copy php.ini-dist to a dir on your server. This is your configuration file, where register_globals and a million other configuration directives are decided... ? Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] passing variable arguments from select
On Wednesday, June 26, 2002, at 02:51 PM, Haddad Said wrote: Hi, i am having a problem passing variables from a drop down menu in a form; from action=test.php action=post select name=example option selected one/option option two/option /form You should do it like this (be sure to properly quote your attributes, and use the 'value' attribute of the 'option' tag): print form action='test.php' method='post' select name='example' option selected='yes' value='1'One/option option value='2'Two/option /select /form\n; In the test.php page, the selected value will be found in the $_POST['example'] variable. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] diffrance : require(); a file from localhost and from a domain.
On Wednesday, June 26, 2002, at 03:19 PM, [EMAIL PROTECTED] wrote: tecnically whats the diffrance if I do: require(http://localhost/image.gif;); or require(http://www.domain.com/image.gif;); ? The first one requires the file at localhost/image.gif, and the second one requires the file at www.domain.com/image.gif. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP does not work??
On Wednesday, June 26, 2002, at 02:56 PM, Scott Fletcher wrote: I tried that and it worked. I have one question, what about the hyperlink? People will see the option in the hyperlink. You know. Is there a way around it to hid that in the hyperlink? If by hyperlink you mean the URL in the URL bar of their browser, correct -- people will see it. That GET data is part of the URL, sort of. Most browsers will not display POST data to their users (easily) but it's never truly hidden from view. Any data that your users are sending to you, whether it's GET, POST, or COOKIE, is data that they can see. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP does not work??
On Wednesday, June 26, 2002, at 02:37 PM, Scott Fletcher wrote: I didn't know that. Thanks for the info. I think it would be best that I not use php.ini. On the contrary, I think it would be best if you read through it and read about it at http://www.php.net/manual/en/configuration.php . Putting it off will only cause you trouble in the long run. I can write the script to register the variable. What would be a demo script that would work? I'm having a little trouble understanding that on the php.net website. Most of the script that use global variables came from hyperlinks. I have no form method like post or get. If it doesn't have post or get, then your data is probably in the $_GET array. But you should always use the method attribute of the form tag. I have one website that use session. Like session_start(), session_register(), etc. How would this be affected and what is the work around to this one. You now refer to a session variable as $_SESSION['variablename']. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Java Pop UP...
On Wednesday, June 26, 2002, at 03:37 PM, Doug Coning wrote:
I have a php page that return rows from a database. I then have an href
link to the individual thread as such:
a href='73things_thread.php?threadID=.$row-postid.'
target='_blank'.
This works, it opens a new window which has the detailed information
needed.
However, how would I write java code into this to force it to open the
window at 300 by 255? I know the java code for this is as follows:
onclick=MM_openBrWindow('73things_thread.php','Thread','scrollbars=yes,widt
h=300,height=255')
How do I merge the java code into PHP?
Make sure the function is defined somewhere above, between script
type='text/javascript' tags, and then you print this:
print a
href=\javascript:MM_openBrWindow('73things_thread.php','Thread','scrollbars=
yes,width=300,height=255')\Click here for a new window at 300 x
255/a;
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] casting user-defined objects
I have been playing around and am unable to explicitly cast an object
instance from one user-defined type to another, using the traditional
type-casting syntax nor with the settype() function.
I feel like I should mention this as an annotation in the man page, but
I was hoping someone could steer me right if I'm wrong here. The
following code doesn't work:
class Apple
{
// some atts and meths
function display() {// do something }
}
class Orange
{
// some atts and meths
function display() {// do something }
}
// this part works fine
$fruit = new Apple;
$fruit-display();
// this part doesn't work like you think it would
$newFruit = (Orange)$fruit;
$newFruit-display();
The confusing thing is that this page
http://www.php.net/manual/en/language.types.type-juggling.php
actually does feature casting to objects, but I am unsure of what
purpose the object type reference has.
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] appending to XML file before closing tag
On Tuesday, June 25, 2002, at 09:31 AM, William S. wrote: I know I need to introduce: fread() and fseek(). but not sure how to put it all together. If you know for a fact that the ending tag for each file is consistent and always that same tag, here's an idea. Determine or specify the length of the ending tag (in other words /html would be a length of 7 [characters]). Now move your file pointer to (file's total characters - length) so that it is immediately before the ending tag. Append your data, then manually append the ending tag. If you will deal with varying ending tags, then you'll have to come up with a creative method for capturing them and storing them, then dynamically determining their length and do the same thing, then append the ending tag (whatever it may be). I would use regexes to do this part. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] char function
On Tuesday, June 25, 2002, at 06:23 AM, Leo wrote:
i want a logical function (true or false) that search a character into a
string.(like indexOf() in javascript)
example: i want to find char '@ ' in the string [EMAIL PROTECTED]
$str = '[EMAIL PROTECTED]';
if (preg_match('/@/', $str)) {
print $str does contain the '@' symbol.\n;
}
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] [php] How to get request url string and server hostname
On Tuesday, June 25, 2002, at 02:56 PM, Harriet Xing wrote:
Would anyone know how to get the http request url string in php?
i.e., if the request is http://www.myserver.com/test.php?param1=123;,
how can I obtain this string in test.php?
$request = http://; . $_SERVER['HTTP_HOST'] . / .
$_SERVER['PHP_SELF'] . ? . $_SERVER['QUERY_STRING'];
However, I don't like using $_SERVER['QUERY_STRING'] because if there
are empty GET variables, it grabs them. So, if you prefer, you can do
this:
$getVarsArr = array();
foreach ($_GET as $getVarName = $getVarVal) {
$getVars[] = $getVarName . = . $getVarVal;
}
$getVarsStr = implode(, $getVars);
$request = http://; . $_SERVER['HTTP_HOST'] . / .
$_SERVER['PHP_SELF'] . ? . $getVarsStr;
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] [php] How to get request url string and server hostname
On Tuesday, June 25, 2002, at 03:22 PM, Erik Price wrote:
However, I don't like using $_SERVER['QUERY_STRING'] because if there
are empty GET variables, it grabs them. So, if you prefer, you can do
this:
$getVarsArr = array();
foreach ($_GET as $getVarName = $getVarVal) {
$getVars[] = $getVarName . = . $getVarVal;
}
$getVarsStr = implode(, $getVars);
$request = http://; . $_SERVER['HTTP_HOST'] . / .
$_SERVER['PHP_SELF'] . ? . $getVarsStr;
Doh, I forgot the part where you test for empty -- amend the above in
the following fashion:
$getVarsArr = array();
foreach ($_GET as $getVarName = $getVarVal) {
if (!empty($getVarVal)) {
$getVars[] = $getVarName . = . $getVarVal;
}
}
$getVarsStr = implode(, $getVars);
$request = http://; . $_SERVER['HTTP_HOST'] . / .
$_SERVER['PHP_SELF'] . ? . $getVarsStr;
Why would you care if there were empty GET vars? Well, if you had a big
search engine or some other form where the user can specify a bunch of
criteria or just a little bit, it's up to you. It's nice if you have to
grab the GET data for whatever reason (repopulating links, etc) and you
don't waste time with huge querystrings made up of mostly-empty
variables.
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] I changed my root password and now can't connect to MySQL
On Tuesday, June 25, 2002, at 03:27 PM, Phil Schwarzmann wrote: Now, whenever my script runs a MySQL command, I get this error Warning: MySQL Connection Failed: Access denied for user: 'root@MY_PC' (Using password: YES) in C:\...\dbconnect.inc on line 3 Cannot connect to The Database. You need to grant privileges to log in as root remotely, which is probably not recommended. Basically a GRANT statement that lets people access MySQL as root from your IP address. Better to create a new user (such as phpuser or something) and enable that one instead. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Security problem?
On Tuesday, June 25, 2002, at 03:46 PM, Peter wrote: When you have the standard $link = mysql_connect(localhost,username,secretpassword); Would it not be possible for someone to use PHP from another server to download your source and find out your MySQL details including password? Yes. If they have access to the source, they can see these values. If they don't have some way of seeing those files, though, they won't be able to do it. For this reason it is a good idea to make sure that no one except you and the user that the webserver runs as can read your files. For instance, all my files are actually readable to all (their mode is 644), except for one. This one file is readable only to me and members the apache group, and it contains all of the database connection parameters. Of course, the only member of the apache group is the apache user that the web server runs as, so no one else will be reading this file. It's a luxury of having root access on my server, since this is pretty difficult to do without a root user (catch 22 -- how do you change the file to the apache group unless you are a member of the apache group, but if you are a member of the apache group then you can see all of the protected files in that group). Also I have a directive that prevents Apache from serving any file with .inc suffix, and this file does, so Apache (hopefully) won't serve this data to the world via port 80. Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Menu Selections Dynamic from a Database
can be sure that it'll work, etc. I personally wouldn't even bother, this kind of coding is pretty technical and you may as well just do it in PHP in case the user doesn't have JS turned on. I think it's a lot easier to do it in PHP too. Sure, the user will have to submit the page to update the new listbox, but... not so hard, eh? Essentially it boils down to this pseudocode: 1. use PHP to dynamically generate a main listbox to control the next listbox 2. use PHP to dynamically generate possible values for the secondary listbox (I would just throw 'em in arrays) 3. determine which array should populate the second listbox based on the input in the first listbox using JavaScript event handlers in the first listbox HTH, Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] More on removing item from cart
On Tuesday, June 25, 2002, at 04:28 PM, Vicki wrote: I have a shopping cart array $cart, with $artID as its key ($artID is an integer). $cart is set as a session variable. The cart prints to the browser with checkboxes next to each article and instructions to uncheck the checkbox and click on the Save Changes button to remove items from the cart. (This is the part that doesn't work.) The checkbox input has NAME = checkbox[$artID] VALUE = yes, and there is a hidden input with NAME = save VALUE = true that are passed when the form is submitted. Before we even discuss the logic of your code, I need you to confirm that you are 1) properly quoting your attributes (some browsers will react badly if you don't) 2) not using the actual value checkbox[$artID] in your code With 2, in other words I am making sure you are not trying to pass an array element name via HTTP. The name of any HTML form input needs to be made up of letters, underscores, and numbers, IIRC. As far as the logic goes, forgive me for being blunt but your explanation is confusing me and I can't really follow it. If you have neat, commented code, post the relevant part of it and hopefully someone can come up with some good input (I'll take a stab). Basically checkboxes are tricky, because if a checkbox is NOT checked, and then the form is submitted, an empty variable name is NOT sent... only checked boxes are sent. So you need to check for the presence of variables if you are going to unset() the unchecked boxes, or determine the unchecked values based on what is NOT checked, etc. Good luck Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP 4.2
On Sunday, June 23, 2002, at 09:06 AM, Pekka Saarinen wrote: Most virtual server users have no means to set PHP.INI to their liking so changes like that should be done in longer time span to let developers update the software _before_ changes in PHP happen. What about ini_set() ? http://www.php.net/manual/en/function.ini-set.php Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Whos online at the moment in PHP
On Sunday, June 23, 2002, at 09:53 AM, Pag wrote: Is it possible to code in PHP a small indicator on a site saying how many people are viewing that page at the moment? Sorry if its a silly question, but i am a newbie at PHP. If it is, could you point me in the good direction? i mean, some function or something. Sorry, can't be done. People aren't really online when they are using a web browser. They request a page, and it gets sent to them, and the web server forgets about them. Unless the web server logged their request, but then the web server has no way of knowing when the user stops looking at the page, so... you get the picture. You'd have to write a Java applet or something that can maintain state. HTTP can't do this. Unless you're really creative and you use JavaScript and sessions (and even then it won't be very reliable). Erik Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
