Online PHP editor | refs for QoKp9

<?php class Singleton { private static $instance = null; final private function __construct() {} final private function __clone() {} public static function getInstance() { if (!self::$instance) { self::$instance = new self; } return self::$instance; } } $oneInstance = Singleton::getInstance(); $creator = function () { return new self(); }; $secondInstance = $creator->bindTo(null, 'Singleton')->__invoke(); var_dump($oneInstance, $secondInstance);