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='truc-trung-gian-xe-tai-cuu-long-639' and id_list= and id_cat= order by stt asc