3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MyParent { private $var = 0; } class Child extends MyParent { public function __construct() { $this->var = 1; } } class Abuser extends MyParent { public function get(MyParent $child) { return $child->var; } } $chils = new Child(); $abuser = new Abuser(); var_dump($abuser->get($child));

preferences:
37.91 ms | 402 KiB | 5 Q