#43229 [Opn->Ver]: array_walk crashes with a segmentation fault
| From: | stas@php.net | Date: | Fri, 09 Nov 2007 23:07:02 +0000 |
| Subject: | #43229 [Opn->Ver]: array_walk crashes with a segmentation fault | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-119405@lists.php.net to get a copy of this message | ||
ID: 43229
Updated by: stas@php.net
Reported By: tobsn@php.net
-Status: Open
+Status: Verified
Bug Type: Reproducible crash
Operating System: CentOS
PHP Version: 5.2CVS-2007-11-09 (CVS)
New Comment:
Looks like a problem happens because array is modified while array_walk
is walking it.
Previous Comments:
------------------------------------------------------------------------
[2007-11-09 20:45:28] tobsn@php.net
Description:
------------
strace doesnt output anything - it just cuts the output with a
segfault.
if you change the variable from $thiskeyword to something else without
"this" at the start, it works correctly... ;)
Reproduce code:
---------------
<?php
$stopwords = array( 'this', 'a', 'the', 'is' );
$keyword = explode( ' ', 'this is a big problem' );
for( $i = 0; $i < 1000; $i++ ) {
$thiskeyword = $keyword;
array_walk( $thiskeyword, create_function('$v,$k','global
$thiskeyword,$stopwords;if(in_array($v,$stopwords)){unset($thiskeyword[$k]);}'));
}
?>
Actual result:
--------------
Segmentation Fault
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=43229&edit=1