[Scenario]

This is directly from my GM. You can edit/add things if you want.

pawn Код:

CMD:pm(playerid, params[])
{
    new iID, szMessage[80];
    if(sscanf(params, "us[79]", iID, szMessage))
        return SendClientMessage(playerid, COLOR_WHITE, "SYNTAX: /pm [nick/id] [message]");
    if(iID == INVALID_PLAYER_ID)
        return SendClientMessage(playerid, COLOR_RED, "Invalid nickname/ID.");

    new
        szString[128]
    ;
    
    format(szString, sizeof(szString), "PM from %s(%d): %s", getName(playerid), playerid, szMessage);
    SendClientMessage(iID, COLOR_YELLOW, szString);
    format(szString, sizeof(szString), "PM to %s(%d): %s", getName(iID), iID, szMessage);
    SendClientMessage(playerid, COLOR_YELLOW, szString);
    return 1;
}