Bug #51784 [Opn->Bgs]: Segmentation fault! causes apache to crash.

Edit report at http://bugs.php.net/bug.php?id=51784&edit=1 ID: 51784 Updated by: pajoye@php.net Reported by: notdefix at hotmail dot com Summary: Segmentation fault! causes apache to crash. -Status: Open +Status: Bogus Type: Bug Package: PCRE related PHP Version: Irrelevant New Comment: Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. Previous Comments: ------------------------------------------------------------------------ [2010-05-10 13:52:12] notdefix at hotmail dot com Description: ------------ Copied from: http://nl2.php.net/preg_replace PHP version: Unknown preg_replace (and str_replace too) will crash php if you use ' ' (space) as replace value for a large number of matches. following Apache Error-Log message: [Mon May 10 09:23:58 2010] [notice] child pid 39251 exit signal Illegal instruction (4) where pid 39251 was the PHP-thread processing that request. Test script: --------------- Copied from: http://nl2.php.net/preg_replace PHP version: Unknown For example: $string = preg_replace('/( )+/', ' ', $string); $string = str_replace(' ', ' ', $string); will crash if $string contains many seperate matches of ' ' producing $string = preg_replace('/( )+/', '', $string); $string = str_replace(' ', '', $string); or $string = preg_replace('/( )+/', '_', $string); $string = str_replace(' ', '_', $string); do all work fine. This seems to be a bug in the underlying PCRE implementation, and not in PHP itself. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=51784&edit=1