Online PHP editor | output for gZgoi

<?php class Foo { protected $bar; public function __construct(BarInterface $bar) { $this->bar = $bar; } public function doAction() { $bar->getVar(); } } interface BarInterface { public function getVar() {} } abstract class BarAbscract implements BarInterface { public function getVar() { return $this->var; } } class Bar extends BarAbscract { protected $var = __CLASS__; } class Baz extends BarAbstract { protected $var = __CLASS__; } $bar = new Bar(); $foo = new Foo($bar); $foo->doAction();