Notice: Undefined index: product_id in /var/www/admin/data/www/ on line 17Notice: Error: 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 '' at line 1
Error No: 1064
SELECT category_id FROM hnt_product_to_category WHERE product_id= in /var/www/admin/data/www/ on line 53