Online PHP editor | output for 42O7b

<?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, $method)) { return function() use($this) { return $this->package->$method; }; } } } $salutationsInstance = new salutations(); $obj = new methodFactory($salutationsInstance); $hello = $obj->getPackageMethod('hello'); $hello();