prepare($sql); $stmt->bind_param("ssssssssi", $first_name, $last_name, $address, $zip, $city, $country_id, $phone, $fiscalcode, $user_id); // Esegui la query if ($stmt->execute()) { echo "Dati aggiornati con successo"; } else { echo "Errore: " . $conn->error; } // Chiudi la connessione $stmt->close(); $conn->close(); }