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Bug #62607 array_walk_recursive move internal pointer
Submitted: 2012-07-19 08:52 UTC Modified: 2016-07-29 22:21 UTC
Votes:1
Avg. Score:4.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: tito at miarroba dot net Assigned: nikic (profile)
Status: Closed Package: Arrays related
PHP Version: 5.3.14 OS:
Private report: No CVE-ID: None
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 [2012-07-19 08:52 UTC] tito at miarroba dot net 
Description:
------------
array_walk_recursive move internal pointer position since 5.3.13 version

Test script:
---------------
$arr = array('a'=>'b');
echo 'Before -> '.current($arr).PHP_EOL;
array_walk_recursive($arr, function(&$val){});
echo 'After -> '.current($arr);

Expected result:
----------------
Before -> b
After -> b

Actual result:
--------------
Before -> b
After -> false

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 [2012-07-19 10:27 UTC] reeze dot xia at gmail dot com 
Yes, it did after the fix for https://bugs.php.net/bug.php?id=61730.
 [2012-07-19 14:18 UTC] laruence@php.net 
it's a side affect of fixing #61730
before that fix, array_walk_ use a pos to hold iterator position, but that will 
cause segfault if the postion become a pending pointer(by unseting the array 
element).
 [2012-07-19 14:18 UTC] laruence@php.net
-Status: Open +Status: Analyzed
 [2012-11-04 14:12 UTC] xmak at studioartlan dot com 
This also happens for regular array_walk()
 [2016-07-29 22:21 UTC] nikic@php.net
-Status: Analyzed +Status: Closed -Assigned To: +Assigned To: nikic
 [2016-07-29 22:21 UTC] nikic@php.net 
Fixed as a side-effect of https://github.com/php/php-src/commit/11e050920d3052d2b14a9cff6c4c5764d674fc46, for 7.1.
 
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