note 72292 added to function.func-get-arg

I was just thinking about a way to create a singleton where you only need to run the instance() function only one time with an argument. And I came up with this solution: (maybe it's useful for other users) <?php class Singleton { private $arg = ""; private function __construct($arg) { $this->arg = $arg; } public static function instance() { static $_instance = null; if(func_num_args() == 0 && $_instance == null) { $_instance = new Singleton(func_get_arg(0)); } } } // first time $singleton = Singleton::instance("foobar"); // later in your code (in other class and/or function) $singleton = Singleton::instance(); ?> ---- Server IP: 193.190.198.20 Probable Submitter: 213.219.148.208 ---- Manual Page -- http://www.php.net/manual/en/function.func-get-arg.php Edit -- https://master.php.net/note/edit/72292 Del: integrated -- https://master.php.net/note/delete/72292/integrated Del: useless -- https://master.php.net/note/delete/72292/useless Del: bad code -- https://master.php.net/note/delete/72292/bad+code Del: spam -- https://master.php.net/note/delete/72292/spam Del: non-english -- https://master.php.net/note/delete/72292/non-english Del: in docs -- https://master.php.net/note/delete/72292/in+docs Del: other reasons-- https://master.php.net/note/delete/72292 Reject -- https://master.php.net/note/reject/72292 Search -- https://master.php.net/manage/user-notes.php