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-truong-giang-8t5-tgfa86t-4x4-cau-dau-dong-co-121kw-lop-11r20-678' and id_list= and id_cat= order by stt asc