note 126144 added to function.get-class

There are discussions below regarding how to create a singleton that allows subclassing. It seems with get_called_class there is now a cleaner solution than what is discussed below, that does not require overriding a method per subclass. e.g. <?php abstract class MySuperclass { static private $instances = array(); static public function getInstance(): ACFBlock { $className = get_called_class(); if (!isset(self::$instances[$className])) { self::$instances[$className] = new static(); } return self::$instances[$className]; } private function __construct() { // Singleton } } class MySubclass extends MySuperclass { } MySubclass::getInstance(); ---- Server IP: 45.112.84.4 Probable Submitter: 45.112.85.242 (proxied: 75.168.53.108) ---- Manual Page -- https://php.net/manual/en/function.get-class.php Edit -- https://main.php.net/note/edit/126144 Del: integrated -- https://main.php.net/note/delete/126144/integrated Del: useless -- https://main.php.net/note/delete/126144/useless Del: bad code -- https://main.php.net/note/delete/126144/bad+code Del: spam -- https://main.php.net/note/delete/126144/spam Del: non-english -- https://main.php.net/note/delete/126144/non-english Del: in docs -- https://main.php.net/note/delete/126144/in+docs Del: other reasons-- https://main.php.net/note/delete/126144 Reject -- https://main.php.net/note/reject/126144 Search -- https://main.php.net/manage/user-notes.php