ecshop浏览历史商品按照点击的先后进行排序的修改方法

" WHERE $where AND is_on_sale = 1 AND is_alone_sale = 1 AND is_delete = 0";

" WHERE $where AND is_on_sale = 1 AND is_alone_sale = 1 AND is_delete = 0 order by INSTR('".$_COOKIE['ECS']['history']."',goods_id)";