[PHP-BUG] Bug #51533 [NEW]: [recursive reference In Array] Nesting level too deep

From:             
Operating system: Linux
PHP version:      5.3.2
Package:          Scripting Engine problem
Bug Type:         Bug
Bug description:[recursive reference In Array] Nesting level too deep

Description:
------------
When there is recursive reference in an array comparison yields Fatal
Error.
Both == and === operators yields the same.

//-------
If It is not a Bug then Recursion Detection is IMPOSSIBLE in PHP.
cause spl_object_hash() doesn't work on array or scaler types.

Test script:
---------------
<?php
error_reporting(255);
ini_set('display_errors','On');
header('Content-Type: text/plain');

$a = array();
$a[0] = &$a;
var_dump($a === $a[0]);
var_dump($a == $a[0]);

?>


Expected result:
----------------
boolean true or false

Actual result:
--------------
Fatal error: Nesting level too deep - recursive dependency? in
/Server/http/php-bugs/nesting.php on line 8

-- 
Edit bug report at http://bugs.php.net/bug.php?id=51533&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=51533&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=51533&r=trysnapshot53
Try a snapshot (PHP 6.0):            http://bugs.php.net/fix.php?id=51533&r=trysnapshot60
Fixed in SVN:                        http://bugs.php.net/fix.php?id=51533&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51533&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=51533&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=51533&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=51533&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=51533&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=51533&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=51533&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=51533&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=51533&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=51533&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=51533&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=51533&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=51533&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=51533&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=51533&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=51533&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=51533&r=mysqlcfg