$promo = (int)$sub_state['promo'];
if ($year > $promo - 15 || $year < $promo - 30) {
$err[] = "La 'Date de naissance' n'est pas correcte.";
$promo = (int)$sub_state['promo'];
if ($year > $promo - 15 || $year < $promo - 30) {
$err[] = "La 'Date de naissance' n'est pas correcte.";