Online PHP editor | refs for ns6q7

<?php class A { public $name = 'a'; private $value = null; public function __construct() { $this->value = 1; } } class B { public $name = 'b'; private $differentValue = null; public function __construct() { $this->differentValue = 1; } } class CD { private $parent = null; public function __construct($parent) { $this->parent = new $parent; } public function __call($name, $params) { if ( is_callable(array($this->parent, $name)) ) { return call_user_func_array(array($this->parent, $name), $params); } else { throw new Exception('Method "'.$name.'" should be callable.'); } } public function __get($property_name){ if(isset($this->$property_name)) { return $this->$property_name; } elseif (isset($this->parent->$property_name)) { return $this->parent->$property_name; } else { return null; } } public function display() { echo "OK"; } } $c = new CD(new B); var_dump($c->name);