Online PHP editor | output for OdR0T

<?php class Foo { public $bar = 'baz'; } class FooProxy extends Foo { private $wrapped; public function __construct(Foo $foo) { $this->wrapped = $foo; unset($this->bar); } public function & __get($name) { return $this->wrapped->$name; } public function __set($name, $value) { $this->wrapped->$name = $value; } public function __isset($name) { return isset($this->wrapped->$name); } public function __unset($name) { return unset($this->wrapped->$name); } } $foo = new FooProxy(new Foo()); $foo->bar; $foo->bar = 'baz'; isset($foo->bar); unset($foo->bar);