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[2007-03-30 17:30 UTC] jfgingras at cegep-ste-foy dot qc dot ca
Description:
------------
I can't use full PCRE in preg_replace and preg_match functions.
If I do:
$body = "b2c3d4e5f6a7b8c9e0f1a2b3c4d5e6f7";
$body = preg_replace('/(^[a-f0-9]{32}$)/', '?', $body );
preg_replace() return en empty string instead of "?" or the original string if the regex doesn't match as the documentation says.
But, if I use this:
$body = "b2c3d4e5f6a7b8c9e0f1a2b3c4d5e6f7";
$body = preg_replace('^[a-f0-9]{32}$', '?', $body );
It works!!
I got the same problem with preg_match, it always return false.
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$body = "b2c3d4e5f6a7b8c9e0f1a2b3c4d5e6f7"; $body = preg_replace('/(^[a-f0-9]{32}$)/', '?', $body ); var_dump($body); string(1) "?" That's what I get in 5.1.6 on Linux and 5.2.1 on Windows.$body = "b2c3d4e5f6a7b8c9e0f1a2b3c4d5e6f7"; $body = preg_replace('/(^[a-f0-9]{32}$)/', '?', $body ); var_dump($body); Above code gives me string(1) "?" on PHP-5.1.6/5.2.1/6.0-dev on linux using CLI or Apache.$body = "b2c3d4e5f6a7b8c9e0f1a2b3c4d5e6f7"; $body = preg_replace('/(^[a-f0-9]{32}$)/', '?', $body ); var_dump($body); It is not even returning a empty string, it return NULL! Here's what I have in my php.ini error_reporting = E_ALL log_errors = On error_log = /var/log/phperror.log Here's my php info [root@cassetout ~]# php -v PHP 5.2.1 with Suhosin-Patch 0.9.6.2 (cli) (built: Mar 30 2007 10:03:24) Copyright (c) 1997-2007 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies Any help is more than welcome. Thx!Forget to mention that no php error are logged in the log file. I even set 666 mode on phperror.log just to be sure that php can write in it. But still no error shown. Strangly, like I said preg_replace works if I remove the '/(' and ')/' from the pattern, but preg_match always return false. But, it print an error: [02-Apr-2007 11:51:29] PHP Warning: preg_match() [<a href='function.preg-match'>function.preg-match</a>]: No ending delimiter '^' found in /usr/local/www/f.php on line 6 And here's the line 6: if(preg_match('^[a-f0-9]{32}$', $body)) echo "YEAH #2!";You're probably right. But still, if I use the following pattern "/([^\x09\x0A\x0D\x20-\x7E\xA0-\xFF])/", preg_replace always return NULL. But if I use "[^\x09\x0A\x0D\x20-\x7E\xA0-\xFF]" it "works", that is, it will not return NULL. If I use '/^[a-f\d]{32}$/i' on "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6", preg_match always return false. The exemples above occur on FreeBSD 6.1 with PHP 5.2.1. I test thoses on Linux 2.6.9 with PHP 5.1.6 and it work. Any idea ?Using the latest snapshot and the code below I get "?" as the result. <?php $body = "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6"; $body = preg_replace('/^[a-f\d]{32}$/i', '?', $body ); var_dump($body); ?> Tested on Linux and FreeBSD.