PHPMyWind安全警告：MySql Error！

错误文件：/product_show.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 classid=23 AND checkinfo = true AND delstate = '' ORDER BY orderid DESC' at line 1 Error sql: SELECT * FROM `pmw_infolist` WHERE id< AND classid=23 AND checkinfo = true AND delstate = '' ORDER BY orderid DESC