Online PHP editor | refs for 8kF4B

<?php class Singleton { private static $instance; private function __construct() { } public static function getInstance() { if (null === self::$instance) { self::$instance = new self(); } return self::$instance; } } $cl = static function() { return new self(); }; $bcl = Closure::bind($cl, null, 'Singleton'); var_dump(Singleton::getInstance()); var_dump(Singleton::getInstance()); var_dump(Singleton::getInstance()); var_dump($bcl()); var_dump($bcl());