$sql='SELECT * FROM pret WHERE ((`emprunt` <= ? AND `retour` >= ?) AND `nom` = ?) OR ((`emprunt` <= ? AND `retour` >= ?) AND `nom` = ?) OR ((`emprunt` >= ? AND `retour` <= ?) AND `nom` = ?);';
$sql='SELECT * FROM pret WHERE (((`emprunt` <= ? AND `retour` >= ?) AND `nom` = ?) OR ((`emprunt` <= ? AND `retour` >= ?) AND `nom` = ?) OR ((`emprunt` >= ? AND `retour` <= ?) AND `nom` = ?)) AND status != ?;';