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 ',1017,1896,2814,1279,3436) order by newstime' at line 1 select id,classid,tagid from ***_moretags_cidian_zuci where tagid in(1017,1896,2814,3970,3436,,,1017,1896,2814,1279,3436) order by newstime