Online PHP editor | output for sGbe9

<?php class Bar { private $msg; public function test($msg) { $this->msg = $msg; } public function shout() { echo $this->msg; } } class Foo { private $bar; public function __construct($bar) { $this->bar = $bar; } public function say($msg) { $bar = $this->bar; $bar->test($msg); $this->bar->shout(); } } $test_me = new Foo(new Bar); $test_me->say('ha ha');