SELECT tid, cid, author, uid, subject, content, postdate 
		FROM pb_threads 
		WHERE ifcheck = 1 AND tid IN () 
		ORDER BY postdate DESC 
		LIMIT 0, 15You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') 
		ORDER BY postdate DESC 
		LIMIT 0, 15' at line 3