#39166 [NEW]: array_key_exists() and magic __isset() method with objects

From: Date: Mon, 16 Oct 2006 12:57:40 +0000
Subject: #39166 [NEW]: array_key_exists() and magic __isset() method with objects
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-103585@lists.php.net to get a copy of this message 
From:             peters at yandex dot ru
Operating system: Windows and Linux
PHP version:      5.1.6
PHP Bug Type:     Class/Object related
Bug description:  array_key_exists() and magic __isset() method with objects

Description:
------------
array_key_exists() may take object as second parameter and
in such case I think it should use __isset() magic function of the object
(if any), but it seems not to do so.
The  isset() and array_key_exists() may return different results for the
same object, which is not good :)

Reproduce code:
---------------
class TestObject
{
	function __isset($nm)
	{
		return true;
	}
}

$A = new TestObject();

var_dump(array_key_exists('test', $A));
var_dump(isset($A->test));

Expected result:
----------------
true
true

Actual result:
--------------
false
true

-- 
Edit bug report at http://bugs.php.net/?id=39166&edit=1
-- 
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39166&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39166&r=trysnapshot52
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39166&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=39166&r=fixedcvs
Fixed in release:             http://bugs.php.net/fix.php?id=39166&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=39166&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=39166&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=39166&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=39166&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=39166&r=notwrong
Not enough info:              http://bugs.php.net/fix.php?id=39166&r=notenoughinfo
Submitted twice:              http://bugs.php.net/fix.php?id=39166&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=39166&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=39166&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=39166&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=39166&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=39166&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=39166&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=39166&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=39166&r=mysqlcfg

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