Comments on: PHP preg_match performance and overcoming maximum limit http://aleembawany.com/2009/02/05/php-preg_match-performance-and-overcoming-maximum-limit/ tech, web and the rest Fri, 27 Jan 2012 13:37:43 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Ohana http://aleembawany.com/2009/02/05/php-preg_match-performance-and-overcoming-maximum-limit/comment-page-1/#comment-45013 Ohana Fri, 14 Oct 2011 08:47:48 +0000 http://aleembawany.com/?p=479#comment-45013 <p>how can i limit the values of match? ex: preg_match('/[.,]{1}/',$string);</p> <p>where {1} is the limit, and if is more then 1 then i can do something with it</p> how can i limit the values of match?
ex: preg_match(‘/[.,]{1}/’,$string);

where {1} is the limit, and if is more then 1 then i can do something with it

]]> By: meza http://aleembawany.com/2009/02/05/php-preg_match-performance-and-overcoming-maximum-limit/comment-page-1/#comment-29375 meza Sun, 18 Oct 2009 19:46:58 +0000 http://aleembawany.com/?p=479#comment-29375 <p>if(strlen($subject)>7000) ini_set('pcre.backtrack_limit','200000');</p> <p>This is just a wild observation, but I guess you'll have to find an optimal equation for increasing the limit. Don't get too happy thou, you could simply crash php by setting the limit too high.</p> <p>http://docs.php.net/manual/en/pcre.configuration.php</p> if(strlen($subject)>7000)
ini_set(‘pcre.backtrack_limit’,’200000′);

This is just a wild observation, but I guess you’ll have to find an optimal equation for increasing the limit. Don’t get too happy thou, you could simply crash php by setting the limit too high.

http://docs.php.net/manual/en/pcre.configuration.php

]]> By: Wells http://aleembawany.com/2009/02/05/php-preg_match-performance-and-overcoming-maximum-limit/comment-page-1/#comment-27964 Wells Mon, 11 May 2009 19:56:03 +0000 http://aleembawany.com/?p=479#comment-27964 <p>Thanks for this. I just spent 45 minutes wondering why preg_match_all() started failing on a much bigger string- with no indication! Argh.</p> Thanks for this. I just spent 45 minutes wondering why preg_match_all() started failing on a much bigger string- with no indication! Argh.

]]> By: awahid http://aleembawany.com/2009/02/05/php-preg_match-performance-and-overcoming-maximum-limit/comment-page-1/#comment-26563 awahid Tue, 03 Mar 2009 05:53:11 +0000 http://aleembawany.com/?p=479#comment-26563 Well I try to avoid regex as much as possible, the reason behind it is that they are heavy and use more CPU. Well I try to avoid regex as much as possible, the reason behind it is that they are heavy and use more CPU.

]]>