Erreur SQL !
FROM posts WHERE (REPLACE (titre_post,"é","e") LIKE "%pianiste\\\\\\\\\\\\\\"%" OR REPLACE (texte_post,"é","e") LIKE "%pianiste\\\\\\\\\\\\\\"%") AND affiche_post="1" AND (REPLACE (titre_post,"é","e") LIKE "%\\\\\\\\\\\\\\"21\\\\\\\\\\\\\\"=\\\\\\\\\\\\\\"21%" OR REPLACE (texte_post,"é","e") LIKE "%\\\\\\\\\\\\\\"21\\\\\\\\\\\\\\"=\\\\\\\\\\\\\\"21%") AND affiche_post="1" AND sujet_post="1" ORDER BY id_post DESC