1064 - 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 'order by p.products_sort_order' at line 1

select p.products_id, p.products_sort_order from products p, products_to_categories ptc where p.products_status = '1' and p.products_id = ptc.products_id and ptc.categories_id = order by p.products_sort_order