错误文件:/pro.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 'OR parentstr LIKE '%,,%') AND checkinfo=true ORDER BY orderid ASC' at line 1 Error sql: SELECT * FROM `pmw_infoclass` WHERE (parentid= OR parentstr LIKE '%,,%') AND checkinfo=true ORDER BY orderid ASC