- $result_update = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_user_data SET holiday_active='Y'
-WHERE userid=%d LIMIT 1", array(bigintval($uid)), __FILE__, __LINE__);
+ SQL_QUERY_ESC("UPDATE `{!_MYSQL_PREFIX!}_user_data` SET holiday_active='Y'
+WHERE userid=%s
+LIMIT 1", array(bigintval($uid)), __FILE__, __LINE__);