(SELECT id_fp, photo, libelle, legende, prix, date_modif FROM fp WHERE id_cat= AND id_sous_cat=0)
UNION
(SELECT id_fp, photo, libelle, legende, prix, date_modif FROM fp_lien_cat
INNER JOIN fp ON (fp_lien_cat.idfp = fp.id_fp)
WHERE fp_lien_cat.idcat=0) ORDER BY  date_modif desc

Message de MySql : 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 'AND id_sous_cat=0) UNION (SELECT id_fp, photo, libelle, legende, prix, date_modi' at line 1 ? No : 1064