php-general Digest 3 Jul 2012 18:24:46 -0000 Issue 7876
php-general Digest 3 Jul 2012 18:24:46 - Issue 7876
Topics (messages 318382 through 318389):
Re: How does this code work?
318382 by: Jim Lucas
318383 by: Robert Williams
318385 by: tamouse mailing lists
Re: PDO Prevent duplicate field names?
318384 by: tamouse mailing lists
Re: Destructor not called when extending SimpleXMLElement
318386 by: Nick Chalk
Re: Way to test if variable contains valid date
318387 by: shiplu
318388 by: Erwin Poeze
exec to launch putty.exe for telnet
318389 by: Devang Patel
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--
---BeginMessage---
On 7/2/2012 7:15 PM, Robert Williams wrote:
I found this code in a user comment in the PHP docs for htmlentities():
?php
function xml_character_encode($string, $trans='') {
$trans = (is_array($trans)) ? $trans :
get_html_translation_table(HTML_ENTITIES, ENT_QUOTES);
foreach ($trans as $k=$v)
$trans[$k]= #.ord($k).;;
return strtr($string, $trans);
}
?
It seems to work. For instance, this (assuming UTF-8 encoding):
echo xml_character_encode('Château');
echo \n;
echo xml_character_encode('Chteau');
Yields this:
Ch#195;#162;teau
Ch#38;teau
My question is, *how* does it work? It makes sense right up to the return statement.
According to the docs for strstr(), when a non-string is passed in as the needle, it's,
converted to an integer and applied as the ordinal value of a character.
First, an array-to-int conversion is undefined, though it seems to produce 1 on my copy
of PHP. Now, I'm not quite sure how to interpret the last part of that statement from the
docs, but I take it that the ultimate value supplied to strstr() is going to be either
'1' (the character value of the integer value of the array) or '49' (the ordinal value of
the character '1'). Whatever, neither one makes sense to look for in the haystack, so I'm
obviously missing something.
I think you missed something here...
The above function uses strtr() not strstr()
http://php.net/strtr
http://php.net/strstr
Perhaps it's just late-Monday slowness on my part, but what's going on here? I
have no intention of using this code, but I'd sure like to understand how it
works!
Regards,
Bob
--
Robert E. Williams, Jr.
Associate Vice President of Software Development
Newtek Businesss Services, Inc. -- The Small Business Authority
https://www.newtekreferrals.com/rewjr
http://www.thesba.com/
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---BeginMessage---
On Jul 2, 2012, at 22:15, Jim Lucas li...@cmsws.com wrote:
I think you missed something here...
The above function uses strtr() not strstr()
Wow. I knew there had to be a simple, logical explanation (there was), that it
would likely be one of those stupid things that I'd spot in two seconds the
next morning (it was). That didn't stop me, however, from spending the last few
hours hashing it over in the back of my mind, trying to figure out what magical
power could make strstr() return content that is not in the haystack.
I feel like an idiot now, but at the same time, I am greatly relieved that all
is right with the world, that the logic I've grown so accustomed to in thirty
years of programming had not gone to voodoo. Thank you for that :-).
Hmm, I wonder if those thirty years are having a different sort of impact on
me, in the form of decaying eyesight
--
Bob Williams
Notice: This communication, including attachments, may contain information that
is confidential. It constitutes non-public information intended to be conveyed
only to the designated recipient(s). If the reader or recipient of this
communication is not the intended recipient, an employee or agent of the
intended recipient who is responsible for delivering it to the intended
Re: [PHP] How does this code work?
On Jul 2, 2012, at 22:15, Jim Lucas li...@cmsws.com wrote: I think you missed something here... The above function uses strtr() not strstr() Wow. I knew there had to be a simple, logical explanation (there was), that it would likely be one of those stupid things that I'd spot in two seconds the next morning (it was). That didn't stop me, however, from spending the last few hours hashing it over in the back of my mind, trying to figure out what magical power could make strstr() return content that is not in the haystack. I feel like an idiot now, but at the same time, I am greatly relieved that all is right with the world, that the logic I've grown so accustomed to in thirty years of programming had not gone to voodoo. Thank you for that :-). Hmm, I wonder if those thirty years are having a different sort of impact on me, in the form of decaying eyesight -- Bob Williams Notice: This communication, including attachments, may contain information that is confidential. It constitutes non-public information intended to be conveyed only to the designated recipient(s). If the reader or recipient of this communication is not the intended recipient, an employee or agent of the intended recipient who is responsible for delivering it to the intended recipient, or if you believe that you have received this communication in error, please notify the sender immediately by return e-mail and promptly delete this e-mail, including attachments without reading or saving them in any manner. The unauthorized use, dissemination, distribution, or reproduction of this e-mail, including attachments, is prohibited and may be unlawful. If you have received this email in error, please notify us immediately by e-mail or telephone and delete the e-mail and the attachments (if any). -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PDO Prevent duplicate field names?
On Mon, Jul 2, 2012 at 5:38 PM, Scott Baker bak...@canbytel.com wrote: It was my mistake, and the SQL was easily fixed. But it woulda been nice to have PHP realize there was a dupe when it was building that array to return to me. This is just not a province of PHP. What sort of behaviour would one expect PHP to do given this scenario? It is surely not an error in every case; I can see some code relying on this exact behaviour. Making it some sort of option in PHP increases the complexity a great deal, not only in trying to determine how to design and then *change* the API to accommodate it, but in figuring out what exactly one might *do*. Since SQL is a completely separate language from PHP, it makes much more sense to learn to deal with these thing separately, and understand what your SQL is doing. Indeed, SQL will happily return multiple columns with the same column name; you must be aware of this when writing it. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] How does this code work?
On Tue, Jul 3, 2012 at 2:31 AM, Robert Williams rewilli...@thesba.com wrote: On Jul 2, 2012, at 22:15, Jim Lucas li...@cmsws.com wrote: Hmm, I wonder if those thirty years are having a different sort of impact on me, in the form of decaying eyesight I've had to tweak up the default fonts on things... *sigh* -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Destructor not called when extending SimpleXMLElement
Thanks Erwin and Matijn. On 2 July 2012 17:32, Matijn Woudt tijn...@gmail.com wrote: This is most likely a bug in PHP. A deconstructor is called when there are no references left to the object. Since this class uses the libXML library, it is likely that there are still references from the libXML open on the object, which is why it will never be destroyed. Anyway, you should report this bug to the PHP devs (at bugs.php.net). Yes, that sounds plausible. As a quick hack, I tried adding a destructor to the SimpleXMLElement extension, but that wasn't called either. I'll submit a bug report. If you really need this, it's probably best to create a class that does not really extend SimpleXMLElement, but you create one inside the constructor, and just forward all function calls to the SimpleXMLElement object you've created in the constructor. I've been playing with that today, and it looks like a workable solution. Thanks for your help! Nick. -- Nick Chalk. Loadbalancer.org Ltd. Phone: +44 (0)870 443 8779 http://www.loadbalancer.org/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Way to test if variable contains valid date
I want to thank you, Daniel, for this help. - I was looking for an
isarray type function
There is no such function or facility in php. However you can check date in
string by DateTime object also
try {
$date = new DateTime('2000-01-01');
} catch (Exception $e) {
echo $e-getMessage();
exit(1);
}
Check php.net/datetime.construct
--
Shiplu.Mokadd.im
ImgSign.com | A dynamic signature machine
Innovation distinguishes between follower and leader
Re: [PHP] Way to test if variable contains valid date
Or you could use a regular expression:
$probe = '2000-01-01';
$found = preg_match('/(19|20)\d\d[- \.](0[1-9]|1[012])[-
\.](0[1-9]|[12][0-9]|3[01])/', $probe);
var_dump($found==1);
Erwin
2012/7/3 shiplu shiplu@gmail.com
I want to thank you, Daniel, for this help. - I was looking for an
isarray type function
There is no such function or facility in php. However you can check date in
string by DateTime object also
try {
$date = new DateTime('2000-01-01');
} catch (Exception $e) {
echo $e-getMessage();
exit(1);
}
Check php.net/datetime.construct
--
Shiplu.Mokadd.im
ImgSign.com | A dynamic signature machine
Innovation distinguishes between follower and leader
[PHP] exec to launch putty.exe for telnet
Hello Experts, I have putty.exe on my desktop so if I will go to command prompt and then to C:\Documents and Settings\user\Desktop location and execute following command it will launch the Putty window of telnet connection to server specified: putty.exe telnet://10.3.215.15/ I am trying to launch the putty to telnet to specific server using following but its not working for me: ?php $securecrt = C:\\Documents and Settings\\user\\Desktop\\putty.exe telnet:// 10.3.215.15/ ; exec($securecrt); ? If I try following then it launches the putty application but will have to provide the host name or IP to login: ?php $securecrt = C:\\Documents and Settings\\user\\Desktop\\putty.exe ; exec($securecrt); ? Not sure if I am missing something very basic, It will be great if someone can help with this. Thanks, Devang
Re: [PHP] exec to launch putty.exe for telnet
On Tue, Jul 3, 2012 at 8:24 PM, Devang Patel devan...@gmail.com wrote: Hello Experts, I have putty.exe on my desktop so if I will go to command prompt and then to C:\Documents and Settings\user\Desktop location and execute following command it will launch the Putty window of telnet connection to server specified: putty.exe telnet://10.3.215.15/ I am trying to launch the putty to telnet to specific server using following but its not working for me: ?php $securecrt = C:\\Documents and Settings\\user\\Desktop\\putty.exe telnet:// 10.3.215.15/ ; exec($securecrt); ? If I try following then it launches the putty application but will have to provide the host name or IP to login: ?php $securecrt = C:\\Documents and Settings\\user\\Desktop\\putty.exe ; exec($securecrt); ? Not sure if I am missing something very basic, It will be great if someone can help with this. Thanks, Devang Hi Devang, What version of PHP are you using? It seems there is a bug with PHP version 5.2 and lower on windows which requires you to add extra quotes to the input, though, doing so will result in errors on PHP version 5.3 and up. Also, are you getting any specific errors? Maybe you can explain a little more detailed of what isn't working exactly? - Matijn -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
