安全警告：MySql Error！

错误文件：/product-12-1.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 checkinfo=true and siteid=1 order by orderid asc' at line 1 Error sql: select * from `ly_infoclass` where parentid= and checkinfo=true and siteid=1 order by orderid asc