Miscellany

         $sql = "UPDATE stats_s_stats                           ".
                "SET incoming_diff  = '$incoming'  - incoming,  ".
                "    outgoing_diff  = '$outgoing'  - outgoing,  ".
                "    incoming2_diff = '$incoming2' - incoming2, ".
                "    incoming2_diff = '$outgoing2' - outgoing2  ".
                "WHERE ip = '$ip'                               ";

         $sql = "INSERT INTO stats_s_stats (ip, incoming, outgoing, incoming2, outgoing2) ".
                "VALUES ('$ip', '$incoming', '$outgoing', '$incoming2', '$outgoing2')     ".
                "ON DUPLICATE KEY                                                         ".
                "UPDATE incoming = '$incoming',                                           ".
                "       outgoing = '$outgoing',                                           ".
                "       incoming2 = '$incoming2',                                         ".
                "       outgoing2 = '$outgoing2'                                          ";