public static function getInstancia() { if (!self::$instance instanceof self) { self::$instance = new self(); } return self::$instance; }
private static function connect() { try { $dsn = self::$driver . ':host=' . self::$host . ';dbname=' . self::$dbname; self::$instance = new PDO($dsn, self::$user); return true; } catch (PDOException $e) { echo $e->getmessage(); } }