[xRyder]

Alright, I made this just for example.

pawn Код:

public OnPlayerConnect(playerid)
{
    SetTimerEx("Wait"/*Name of the Function/Timer*/, 3000/*Time - 3sec*/, false/*It will not repeate*/,/*You're sending players ID as a parameter ->*/ "i", playerid);
    return 1;
}

forward Wait(playerid);
public Wait(playerid)
{
    SendClientMessage(playerid, 0xFFFFFFFF, "Welcome to my server!");
    return 1;
}