[bradleyofniet]

Try this:

pawn Код:

CMD:id(playerid, params[])
{
    new string[128], giveplayerid;
    if(sscanf(params, "u", giveplayerid)) return SendClientMessage(playerid, COLOR_WHITE, "USAGE: /id [playerid]");

    if(IsPlayerConnected(giveplayerid))
    {
        format(string, sizeof(string), "(ID: %d) - (Name: %s) ", giveplayerid, GetPlayerName(giveplayerid));
        SendClientMessage(playerid, string);
    }
    else
    {
        SendClientMessage(playerid, "Invalid player specified.");
    }
    return 1;
}

My bad :P, I use other includes I guess