From: karl at posmaster dot com dot au
Operating system: Slackware Linux 2.4.26
PHP version: 5.0.3
PHP Bug Type: Zend Engine 2 problem
Bug description: Reference fails after use of unset() on array
Description:
------------
Using "for each" I wanted to remove some items and change others. It
seems that the reference in the loop no longer works once unset() has been
called on the array.
The commented line achieves the desired end, but circumvents the
reference.
The reference works if the unset() line is commented.
This is reproduced without the use of Zend or 3rd part extensions.
-----------------------
Reproduce code:
---------------
<?php
$stuff = array(array('one','two'),array('one','two'),
array('three','four'),array('five','six'),
array('seven','eight'),array('nine','ten'));
var_dump($stuff);
foreach ($stuff as $key => &$values) {
print "on key:$key<br>";
if(($key%2)==0){
print "Running unset for $key <br>";
unset ($stuff[$key]);
}else{
print "Running change for $key <br>";
$values[1]='foo';
// $stuff[$key][1] = 'foo';
}
}
var_dump($stuff);
?>
Expected result:
----------------
I expected to see elements $stuff[1][1], $stuff[3][1] and $stuff[5][1] to
be set to 'foo'
Actual result:
--------------
The elements are left unchanged. Are values 'two', 'six' and 'ten'
respectively.
--
Edit bug report at http://bugs.php.net/?id=32088&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=32088&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=32088&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=32088&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=32088&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=32088&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=32088&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=32088&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=32088&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=32088&r=support
Expected behavior: http://bugs.php.net/fix.php?id=32088&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=32088&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=32088&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=32088&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=32088&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=32088&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=32088&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=32088&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=32088&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=32088&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=32088&r=mysqlcfg
