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