You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ',1731,1361,542,1036) order by newstime' at line 1 select id,classid,tagid from ***_jfmoretags_jf_ziku where tagid in(646,841,28,915,,,1731,1361,542,1036) order by newstime