Description:
------------
hello everyone ;

In the documentation, it's said that the magic __call method is called when an inaccessible member is read. But I've small issue in my current class with a setter method. When I try to set an Alias on an inexistent member, the magic __call method is also called.

To solve the problem, I uses a workaround like this in the setter method:

public static function &setAlias($index, &$value) {

	$instance = self::getInstance();
	// Small workaround to avoid call of magic __get().
	$instance->$index = '';

	return $instance->$index = &$value;
}

Strange behavior, no ? It's bug or not, if not, can you explain to me the reason of this statement ? I uses php 5.2.6.

Sorry, for my poor english, I'm french.

Test script:
---------------
class Registry {

	protected static $_instance = null;

	public static function getInstance() {

		if(self::$_instance == null) {
			self::$_instance = new self;
		}

		return self::$_instance;
	}

	public function __get($index) {

		print 'Oh my god...';
	}

	public static function &setAlias($index, &$value) {

		$instance = self::getInstance();
		return $instance->$index = &$value;
	}
}

class myObject {

	protected static $_instance = null;

	public static function &getInstance() {

		if(self::$_instance == null) {
			self::$_instance = new self();
		}

		return  self::$_instance;
	}

}

// Here, I want register a `myObject` instance by reference (not by object identifier)
Registry::setAlias('MyData', myObject::getInstance());

echo '<pre>';
	var_dump(Registry::getInstance());
echo '</pre>';


Expected result:
----------------
object(Registry)#2 (1) {
  ["MyData"]=>
  &object(myObject)#1 (0) {
  }
}


Actual result:
--------------
Oh my god... Notice: Indirect modification of overloaded property Registry::$MyData has no effect in /var/www/test.php on line 67 Fatal error: Cannot assign by reference to overloaded object in /var/www/test.php on line 67