Online PHP editor | refs for gYklr

<?php class Bar { private $a; public function __construct($a) { $this->a = (bool) $a; } public function a() { return $this->a; } } function foo(callable $x) { $object = new Bar(false); $x($object); return $object->a(); } var_dump(\Closure::bind(function () { $this->a = true;} , 'Bar', 'Bar'));