public function addFloor($data) { self::initDB(); $extralsql = array2sql($data); $sql = "INSERT " . self::$table . " SET {$extralsql} "; $query = self::$dbConn->query($sql); if ($query) { self::$errCode = "200"; self::$errMsg = "success"; return true; } else { self::$errCode = "003"; self::$errMsg = "error"; return false; } }