A Database Error Occurred

Error Number: 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 ' r.category_id) ORDER BY r.rating DESC' at line 5

SELECT r.*, (SELECT title FROM categories WHERE id = r.category_id) as cat_title FROM reviews as r WHERE FIND_IN_SET(, r.category_id) ORDER BY r.rating DESC

Filename: controllers/Category.php

Line Number: 26