Bug #53118 [NEW]: preg_split with a subpattern fails on some specific input

From: Date: Wed, 20 Oct 2010 18:44:08 +0000
Subject: Bug #53118 [NEW]: preg_split with a subpattern fails on some specific input
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-155379@lists.php.net to get a copy of this message 
From:             
Operating system: Win/lin
PHP version:      5.3.3
Package:          PCRE related
Bug Type:         Bug
Bug description:preg_split with a subpattern fails on some specific input

Description:
------------
preg_split fails on some specific input, which seems to be caused by a
subpattern. If in the testcode I reduce the length of the string in between
the middle [..], it works fine.

Test script:
---------------
<?php
$input = '[a][012345678901234 ][a]';

// first match a [, then anything but spaces, end with ]
$tokens = preg_split('/\\[([^\\s]*)*\\]/U', $input);
print_r($tokens);


$tokens = preg_split('/\\[[^\\s]*\\]/U', $input);
print_r($tokens);

Expected result:
----------------
Array
(
    [0] =>
    [1] => [012345678901234 ]
    [2] =>
)
Array
(
    [0] =>
    [1] => [012345678901234 ]
    [2] =>
)

Actual result:
--------------
Array
(
    [0] =>
    [1] => [012345678901234 ][a]
)
Array
(
    [0] =>
    [1] => [012345678901234 ]
    [2] =>
)

-- 
Edit bug report at http://bugs.php.net/bug.php?id=53118&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=53118&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=53118&r=trysnapshot53
Try a snapshot (trunk):              http://bugs.php.net/fix.php?id=53118&r=trysnapshottrunk
Fixed in SVN:                        http://bugs.php.net/fix.php?id=53118&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53118&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=53118&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=53118&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=53118&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=53118&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=53118&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=53118&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=53118&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=53118&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=53118&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=53118&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=53118&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=53118&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=53118&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=53118&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=53118&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=53118&r=mysqlcfg

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