Erreur SQL !
FROM posts WHERE (REPLACE (titre_post,"é","e") LIKE "%1zqjyn'"(){}:/1zqjyn%" OR REPLACE (texte_post,"é","e") LIKE "%1zqjyn'"(){}:/1zqjyn%") AND affiche_post="1" AND sujet_post="1" ORDER BY id_post DESC
FROM posts WHERE (REPLACE (titre_post,"é","e") LIKE "%1zqjyn'"(){}