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 id_cat= order by stt asc' at line 1syntax error: select * from table_product_item where hienthi=1 and tenkhongdau='xe-tai-86-tan-dongfeng-hoang-huy-86-tan-b190-chassis-tai-thung-2-chan-422' and id_list= and id_cat= order by stt asc