public static function carrierShowById($id) { self::initDB(); $sql = "SELECT * FROM trans_carrier where id={$id}"; $query = self::$dbConn->query($sql); if ($query) { $ret = self::$dbConn->fetch_array_all($query); return $ret; } else { self::$errCode = "003"; self::$errMsg = "die"; return false; } }