Description:
------------
While using __get and __set im getting the following notice : "Notice: Indirect modification of overloaded property $var has no effect "

It worked perfect in previous PHP versions.



Reproduce code:
---------------
class myclass 
{	

	/*
	$this->_data = 
		array(1) {
  			["abcd"] => array(2) {
    			["a"] => string(2) "cc"
    			["b"] => string(2) "dd"
  			}
		}
	*/

	public function __get($name)
    {
        $result = null;
        if (isset($this->_data[$name])) { 
            $result = $this->_data[$name];
        }
		return (array)$this->_data[$name] ;
	}
	
	public function __set($value, $arg)
    {
		foreach($arg as $key=>$inhoud) {
			$this->_data[$value][$key] = $inhoud;  
		}
    }
}	

$myclass = new myclass();
$myclass->abcd['a'] = 'ee'; //does not work anymore
$myclass->newNode['a'] = 'ee'; //does not work anymore


Expected result:
----------------
array(2) {
	["abcd"] => array(2) {
		["a"] => string(2) "ee"
		["b"] => string(2) "dd"
	}
	["newNode"] => string(2) "ee"
}

Actual result:
--------------
Data does not change and outputs "Notice: Indirect modification of overloaded property $var has no effect "