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-ben-veam-star-635kg-1790-x-1320-x-335-mm-575' and id_list= and id_cat= order by stt asc