new
            query[315], IP[16], Name[MAX_PLAYER_NAME];
        GetPlayerIp(playerid, IP, sizeof(IP));

        GetPlayerName(playerid, Name, sizeof(Name));

        format(Dialog, sizeof(Dialog), "{FF0000}You are banned from this server! Ban details:\n\n{FF0000}Name:{FFFFFF} %s \n{FF0000}IP:{FFFFFF} %s\n{FF0000}Reason:{FFFFFF} Jetpack Hacks \n{FF0000}Banned By:{FFFFFF} Anti - Cheat\n\n{FF0000}You will never unbanned!\n\n{FF0000}If you think this ban is unfair, you can apply for an unban appeal at our forums\n{FF0000}Note - We do not unban hackers, or people who lie in their appeal", Name, IP);
        ShowPlayerDialog(playerid, DIALOG_BAN, DIALOG_STYLE_MSGBOX, "{FF0000}Banned!", Dialog, "Close", "");

        format(query,sizeof(query), "INSERT INTO bans (Name, IP, Reason, BannedBy, Date, Status) VALUES('%s', '%s', 'Jetpack Hacks', 'Anti - Cheat', NOW(), '1')", GetName(playerid), IP, gettime());
        mysql_query(query);

public OnPlayerUpdate(playerid)
{
    //don't need to keep checking if they are banned
    //they may send some more updates while they are being kicked
    if(GetPVarInt(playerid,"banned")) return 1;
    //...
}