Erreur SQL !
FROM posts WHERE (REPLACE (titre_post,"é","e") LIKE "%rechercher\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'trzwtp<\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\">wkkymb%" OR REPLACE (texte_post,"é","e") LIKE "%rechercher\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'trzwtp<\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\">wkkymb%") AND affiche_post="1" AND sujet_post="1" ORDER BY id_post DESC