se guarid qua http://php.net/manual/en/mysqli-result.fetch-field.php trovi la risposta. Esempio:
Codice PHP:
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
$query = "SELECT ID_Prodotto AS Id FROM prodotti ORDER BY Nome";
if ($result = $mysqli->query($query)) {
while ($finfo = $result->fetch_field())
$_SESSION[$finfo->name] = 'xxxx';
$result->close();
}
$mysqli->close();