Bug #62233 [NEW]: foreach destroys arrays
| From: | a1283465 at jnxjn dot com | Date: | Tue, 05 Jun 2012 15:59:00 +0000 |
| Subject: | Bug #62233 [NEW]: foreach destroys arrays | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-171046@lists.php.net to get a copy of this message | ||
From: a1283465 at jnxjn dot com
Operating system: Linux
PHP version: 5.3.13
Package: Arrays related
Bug Type: Bug
Bug description:foreach destroys arrays
Description:
------------
See script outputs below.
Please note that the array is already broken after the first foreach run
because the last array element is now a pointer.
Workaround for the second foreach loop:
Do a unset($val) between the two foreach loops.
Test script:
---------------
$a = array(1,2,3);
var_dump($a); // array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) }
foreach ($a as &$val) { } // Now the array is broken
var_dump($a); // array(3) { [0]=> int(1) [1]=> int(2) [2]=> &int(3) }
foreach ($a as $val) { } // Now the array is destroyed
var_dump($a); // array(3) { [0]=> int(1) [1]=> int(2) [2]=> &int(2) }
echo $a[2]; // Output: 2, Expected: 3
--
Edit bug report at https://bugs.php.net/bug.php?id=62233&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=62233&r=trysnapshot54
Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=62233&r=trysnapshot53
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=62233&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=62233&r=fixed
Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=62233&r=needdocs
Fixed in release: https://bugs.php.net/fix.php?id=62233&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=62233&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=62233&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=62233&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=62233&r=support
Expected behavior: https://bugs.php.net/fix.php?id=62233&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=62233&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=62233&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=62233&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=62233&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=62233&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=62233&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=62233&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=62233&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=62233&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=62233&r=mysqlcfg