public static function checkHotelCodeUseful($HotelCode, $UserId) { $hotelinfo = HotelDetail::getHotelByHotelCode($HotelCode); $HotelId = $hotelinfo['HotelId']; if (!$HotelId) { return 0; } $sql = "select UserID from HT_User where 1=1 "; $sql .= $HotelId ? "and HotelId='{$HotelId}' " : ""; $sql .= $UserId ? "and UserID <> '{$UserId}' " : ""; $userinfo = Db::getInstance()->getRow($sql); $userId = $userinfo['UserID']; if ($userId) { return 0; } return $HotelId; }