Description:
------------
Hi,

There is a memory leak when calling a method of a class.
I know the bug is fixed in PHP5 but for business reasons we can't afford to upgrade to php5 right now.

Is that possible to fix this very annoying issue?


/Benoit

Reproduce code:
---------------
<?php

class ClassA
{
	var $member;
	
	function setMember($value)
	{
		$this->member = $value;
	}
}

$obj =& new ClassA();
$mem = memory_get_usage();
for ($i=0; $i< 1000000; $i++)
	$obj->member = null;

print "Direct property set memory leak is " . number_format(memory_get_usage()-$mem) . "\n";

$mem = memory_get_usage();
for ($i=0; $i< 1000000; $i++)
	$obj->setMember(null);
	
print "Method call memory leak is " . number_format(memory_get_usage()-$mem) . "\n";

?>

Expected result:
----------------
Direct property set memory leak is 0
Method call memory leak is 0


Actual result:
--------------
Direct property set memory leak is 128
Method call memory leak is 8,000,040