public static function init() {

		if(is_null(self::$storage)) {
			self::$storage = new NativeSessionStorage();
		}

		self::$storage->start();
		
	}
public static function init() {

		if(is_null(self::$storage)) {
			self::$storage = new NativeSessionStorage();
		}

		self::$storage->start();
		
	}
public static function init ( ) { if ( is_null ( self :: $ storage ) ) { self :: $ storage = new NativeSessionStorage ( ) ; } self :: $ storage -> start ( ) ; }
initialize session storage mechanism
currently only wraps PHP native session storage
initialize session storage mechanism currently only wraps PHP native session storage