From:             nikic
Operating system: 
PHP version:      5.5.0RC3
Package:          Scripting Engine problem
Bug Type:         Bug
Bug description:count() off by one inside unset()

Description:
------------
If code is run inside an array offset unset the reported size of that array
will be off by one:

<?php

class Foo {
    public $array;

    public function __destruct() {
        var_dump(count($this->array[0]));
        var_dump($this->array[0]);
    }
}

$array = [[new Foo]];
$array[0][0]->array =& $array;
unset($array[0][0]);

Outputs:

int(1)
array(1) {
}

The reason is that zend_hash_del_key_or_index decrements the element count
*after* calling the bucket dtor.



-- 
Edit bug report at https://bugs.php.net/bug.php?id=65051&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=65051&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=65051&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=65051&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=65051&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=65051&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=65051&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=65051&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=65051&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=65051&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=65051&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=65051&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=65051&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=65051&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=65051&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=65051&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=65051&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=65051&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=65051&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=65051&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=65051&r=mysqlcfg

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