PHPMyWind安全警告：MySql Error！

错误文件：/product_list/347.html
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 delstate='' AND checkinfo=true ORDER BY orderid ASC' at line 1 Error sql: SELECT id,title,picurl,description FROM pmw_infolist WHERE classid= AND delstate='' AND checkinfo=true ORDER BY orderid ASC