Strt_(de)crypt in una query

[Manuelandro]

ok..tipo:

$query = "SELECT Campo FROM tabella";
$r = mysql_query($query, $db);
$row = mysql_fetch_array($r);

$row[Campo] = str_decrypt($row[Campo], $key);
$row[Campo] = $row[Campo] + 1;

$row[Campo] = str_crypt($row[Campo], $key);

$query = "UPDATE tab SET Campo = $row[Campo]";
$r = mysql_query($query, $db); 

thanks...