#47278 [Bgs]: preg_match behaves different to version 4.4.4

ID: 47278 User updated by: franklyn dot santana at gmail dot com Reported By: franklyn dot santana at gmail dot com Status: Bogus Bug Type: PCRE related Operating System: Windows 2003 Server PHP Version: 5.2.8 New Comment: yes, I didn't know there was a PREG_BACKTRACK_LIMIT_ERROR option at php.ini in php5. I had to set it to 500000 for the script to work. Thanks people :D Previous Comments: ------------------------------------------------------------------------ [2009-02-02 23:23:54] jani@php.net Hint: PREG_BACKTRACK_LIMIT_ERROR ------------------------------------------------------------------------ [2009-02-02 20:46:12] felipe@php.net Check preg_last_error(). http://docs.php.net/manual/en/function.preg-last-error.php ------------------------------------------------------------------------ [2009-02-02 20:30:13] franklyn dot santana at gmail dot com I read somewhere (right now I don't remember where) there is problem with long regular expressions in php5. Is that true? I made the regular expression shorter, now the script works (with some limitations due to the short regex). ------------------------------------------------------------------------ [2009-02-02 13:44:58] franklyn dot santana at gmail dot com Description: ------------ I have a code for url rewrite, I use the preg_match function to separate the GET parameters. The code works fine in PHP 4.4.4, I get a matches array with the GET parameters. But it doesn't work on PHP 5.28, the matches array is empty. I was checking the documentation and It seems there are not changes on this function. Reproduce code: --------------- $url="http://localhost/test+param-2009.html"; preg_match("/\/[^+]*\+?[^+]+\++([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)-?". "([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)-?". "([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)-?([^-]*)\.html/i", $url, $parameters); print_r($parameters) Expected result: ---------------- /*tested on PHP 4.4.4 Array ( [0] => //localhost/test+param-2009.html [1] => param [2] => 2009 [3] => [4] => [5] => [6] => [7] => [8] => [9] => [10] => [11] => [12] => [13] => [14] => [15] => [16] => [17] => [18] => [19] => [20] => ) Actual result: -------------- Array ( ) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=47278&edit=1