samp

public OnPlayerCommandText(playerid, cmdtext[])
{
    dcmd(heal, 4, cmdtext);
    return 0;
}

dcmd_heal(playerid, params[])
{
        new id;
    if (strlen(params))
    {
        id = strval(params);
        if (IsPlayerConnected(id))
        {
            SetPlayerHealth(id, 100.0);
            SendClientMessage(id, 0x00FF00AA, "You have been healed");
            SendClientMessage(playerid, 0x00FF00AA, "Player healed");
        }
        else
        {
            SendClientMessage(playerid, 0xFF0000AA, "Player not found");
        }
    }
    else
    {
        SendClientMessage(playerid, 0xFF0000AA, "Usage: \"/heal <playerid>\"");
    }
    return 1;
}