PHPMyWind安全警告：MySql Error！

错误文件：/productshow.php
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 mainpid = AND id <> AND mainpid <> -1 AND delstate='' AND checkinfo=true O' at line 1 Error sql: SELECT * FROM `weijia_infoimg` WHERE mainid = AND mainpid = AND id <> AND mainpid <> -1 AND delstate='' AND checkinfo=true ORDER BY orderid DESC LIMIT 0,30