function final_post($user_id, $session_id, $ip, $host_id, $ppm, $mode, $total_time, $amount)
{
    global $DB, $PREFS;
    //?action=periodic&user_id=USER_ID&session_id=SESSION_ID&ip=IP&host_id=HOST_ID&ppm=PPM&mode=MODE&total_time=TOTAL_TIME&amount=AMOUNT

    //get session info
    $result = $DB->query("SELECT * FROM " . DB_PREFIX . "sessions WHERE session_id='$session_id' LIMIT 1");
    $obj = $DB->fetch_object($result);
    $holdup = $obj->holdup;

    $credit = ($holdup /10 ) - $amount;

    if ($credit > 0)
    {
        $newcredits = $credit * 10;
        // credit member with remaining of time
        $DB->query("UPDATE ".DB_PREFIX."members SET totalcredits=totalcredits+'$newcredits' WHERE hostname='$user_id' LIMIT 1");

        //update sessions table
        $DB->query("UPDATE " . DB_PREFIX . "sessions SET amount='$amount', duration='$total_time' WHERE session_id='$session_id'");

        // credit model with credits
        if($mode = 2)
        {
            $creditsearned = (GCHAT_COMM/100) * ($amount * 10);
            $DB->query("UPDATE ".DB_PREFIX."members SET creditsearned=creditsearned+'$creditsearned' WHERE hostname='$host_id' LIMIT 1");
        }elseif($mode=3)
        {
            $creditsearned = (PCHAT_COMM/100) * ($amount * 10);
            $DB->query("UPDATE ".DB_PREFIX."members SET creditsearned=creditsearned+'$creditsearned' WHERE hostname='$host_id' LIMIT 1");
        }
    }
    //$fp = fopen('vars.txt','a');
    //fwrite($fp, date('m-d-Y H:i:s').' '.$action.' '.$user_id.' '.$session_id.' '.$ip.' '.$host_id.' '.$ppm.' '.$mode.' '.$total_time.' '.$amount.' '.$amount.' '.chr(13).chr(10));
    //fclose($fp);
    echo('&accepted=1');
}