Erreur SQL !
SELECT * FROM produit p, produit_rayon pr WHERE pr.pr_pro_id = p.pro_id AND p.pro_hidden = 0 AND pr.pr_ray_id = GROUP BY p.pro_id
You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'GROUP BY p.pro_id' at line 1