A Database Error Occurred

Error Number: 1327

Undeclared variable: art

SELECT p . * , r.part_id FROM post AS p INNER JOIN relationships AS r ON p.post_id = r.post_id AND r.part_id =18 ORDER BY p.post_id DESC LIMIT art , 20

Filename: /var/www/vhosts/syriadailynews.com/application/models/posts_model.php

Line Number: 168