安全警告：MySql Error！

错误文件：/
错误信息：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 'and classid!=36 AND checkinfo=true and delstate!=true ORDER BY orderid desc,post' at line 1 Error sql: SELECT * FROM `pmw_infoproduct` WHERE parentid=3 and id!= and classid!=36 AND checkinfo=true and delstate!=true ORDER BY orderid desc,posttime desc,id desc limit 0,4