public static function getInstance() { if (self::$instance == NULL) { self::$instance = new self(); } return self::$instance; }
static function get_instance() { if (self::$instance == NULL) { self::$instance = new Register(); } return self::$instance; }
public static function getInstance() { if (self::$instance == NULL) { // self::$instance = new __CLASS__; self::$instance = new Register(); } return self::$instance; }