note 88210 added to language.oop5.cloning

If you create a singleton class to implement a database connection with PDO and try to clone your object, PHP will allow it. i.e.: class Database { protected static $instance = null; private function __construct() { } public function __clone() { } public static function getInstance() { if(self::$instance == null) { try { self::$instance = new PDO('dsn', 'user', 'pass'); } catch(Exception $e) { } } return self::$instance; } } $db = Database::getInstance(); $db2 = clone $db; This shouldn't work, but it does... it creates a new instance of the object. ---- Server IP: 69.147.83.197 Probable Submitter: 201.7.117.200 ---- Manual Page -- http://www.php.net/manual/en/language.oop5.cloning.php Edit -- https://master.php.net/note/edit/88210 Del: integrated -- https://master.php.net/note/delete/88210/integrated Del: useless -- https://master.php.net/note/delete/88210/useless Del: bad code -- https://master.php.net/note/delete/88210/bad+code Del: spam -- https://master.php.net/note/delete/88210/spam Del: non-english -- https://master.php.net/note/delete/88210/non-english Del: in docs -- https://master.php.net/note/delete/88210/in+docs Del: other reasons-- https://master.php.net/note/delete/88210 Reject -- https://master.php.net/note/reject/88210 Search -- https://master.php.net/manage/user-notes.php