public OnPlayerConnect(playerid)
{
    new pName[24];
    new str[128];
    GetPlayerName(playerid, pName, 24);
    format(str, 128, ".: ( %s ) has connected to the server :.", pName);
    SendClientMessageToAll(0x99FF00AA, str);
    return 1;
}

public OnPlayerDisconnect(playerid, reason)
{
    new pName[24];
    new str[128];
    GetPlayerName(playerid, pName, 24);

    switch(reason)
        {
            case 0: format(str, 128, ".: ( %s ) has left the server. (Timeout) :.", pName);
            case 1: format(str, 128, ".: ( %s ) has left the server. (Leaving) :.", pName);
            case 2: format(str, 128, ".: ( %s ) has left the server. (Kicked) :.", pName);
        }
    SendClientMessageToAll(0x33CCFFAA, str);
    return 1;
}