note 79966 added to language.oop5.patterns

There is very interesting result of this script. Object created, but not saved in variable... Any ideas? <?php class Singletone { private static $instance; protected function __construct() { print 'class Singletone'; } public static function init($className=__CLASS__) { if(!isset(self::$instance)) self::$instance = new $className; return self::$instance; } } abstract class Session extends Singletone { } final class SessionMemcache extends Session { protected function __construct() { print('Session memcached'); } public static function init() { parent::init(__CLASS__); } public function test() { print 'TEST from SessionMemcache object'; } } $a = SessionMemcache::init(); //print msg from constructor $a->test(); //Fatal error: Call to a member function test() on a non-object ?> ---- Server IP: 88.81.249.248 Probable Submitter: 195.200.64.186 ---- Manual Page -- http://www.php.net/manual/en/language.oop5.patterns.php Edit -- https://master.php.net/note/edit/79966 Del: integrated -- https://master.php.net/note/delete/79966/integrated Del: useless -- https://master.php.net/note/delete/79966/useless Del: bad code -- https://master.php.net/note/delete/79966/bad+code Del: spam -- https://master.php.net/note/delete/79966/spam Del: non-english -- https://master.php.net/note/delete/79966/non-english Del: in docs -- https://master.php.net/note/delete/79966/in+docs Del: other reasons-- https://master.php.net/note/delete/79966 Reject -- https://master.php.net/note/reject/79966 Search -- https://master.php.net/manage/user-notes.php