[Abagail]

You already made the function, you just didn't place any code inside.

pawn Код:

forward DelayedFunction(playerid);
public DelayedFunction(playerid)
{
    new pName[24];
    GetPlayerName(playerid, pName, 24);

    new string[128];
    format(string, sizeof string, "(%s) has joined the server.", pName);
    SendClientMessageToAll(-1, string);
    return 1;
}