Online PHP editor | output for q92nH

<?php class salutations { public function hello() { return "Hello World!"; } } class methodFactory { public function __construct($instance) { $this->package = $instance; } public function getPackageMethod($method) { if (method_exists($this->package, $method)) { $f = function() use ($method) { return $this->package->{$method}(); }; $f->bindTo($this); return $f; } } } $salutationsInstance = new salutations(); $obj = new methodFactory($salutationsInstance); $hello = $obj->getPackageMethod('hello'); echo $hello();