Description:
------------
When $this is stored by reference in a PHP array, itself stored in a property, then function call_user_func_array() is able to recognize the reference only if called in the same local context where $this is referenced. In other words, the reference seems to be lost for call_user_func_array().
The bug does not occur with PHP 5.2,
It does occur with both PHP 5.3.0 and PHP 5.3.1. Not yet tested with PHP 5.3.2
Note that if we use a global variable instead of a property, then the bug does not occur.
Reproduce code:
---------------
<?php
function f_test(&$obj) {
	$obj->prop++;
	echo "prop=".$obj->prop." <br>\r\n";
}
class clsTest {
	public $prop = 0;
	public $arg_array = false;
	function meth() {
		if ($this->arg_array===false) $this->arg_array = array(&$this);
		echo 'arg_array[0] '.(($this->arg_array[0]===$this) ? ' is the same instance' : ' is not the same instance').' than $this'." <br>\r\n";
		call_user_func_array('f_test', $this->arg_array);
	}
}
$oTest = new clsTest;
$oTest->meth(); // OK
$oTest->meth(); // ERR
?>
Expected result:
----------------
arg_array[0] is the same instance than $this
prop=1
arg_array[0] is the same instance than $this
Warning: Parameter 1 to f_test() expected to be a reference, value given in D:\www\bug.php on line 14
Actual result:
--------------
arg_array[0] is the same instance than $this
prop=1
arg_array[0] is the same instance than $this
prop=2