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-howo-4-chan371-7300x2300-2000x600430-mm-471' and id_list= and id_cat= order by stt asc