Erreur SQL !
FROM posts WHERE (REPLACE (titre_post,"é","e") LIKE "%costume%" OR REPLACE (texte_post,"é","e") LIKE "%costume%") AND affiche_post="1" AND (REPLACE (titre_post,"é","e") LIKE "%narnia/"%" OR REPLACE (texte_post,"é","e") LIKE "%narnia/"%") AND affiche_post="1" AND (REPLACE (titre_post,"é","e") LIKE "%/"x/"=/"y%" OR REPLACE (texte_post,"é","e") LIKE "%/"x/"=/"y%") AND affiche_post="1" AND sujet_post="1" ORDER BY id_post DESC