安全警告：MySql Error！

錯誤文件：/gallery-con.php
錯誤信息：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 'OR parentstr LIKE '%,,%') AND delstate='' AND checkinfo=true AND id=31' at line 1 Error sql: SELECT * FROM `ctc_infoimg` WHERE (classid= OR parentstr LIKE '%,,%') AND delstate='' AND checkinfo=true AND id=31