[PhoenixB]

Use this code:

pawn Code:

public OnPlayerConnect(playerid)
{
    gPlayerLogged[playerid] = 0;
    new name[MAX_PLAYER_NAME], file[256];
    GetPlayerName(playerid, name, sizeof(name));
    format(file, sizeof(file), SERVER_USER_FILE, name);
    if (!dini_Exists(file))
    {
        ShowPlayerDialog(playerid, 1, DIALOG_STYLE_INPUT, "REGISTER", "Unesite zeljenu sifru da se registrirate.", "Register", "Izlaz");
    }
    if(fexist(file))
    {
        ShowPlayerDialog(playerid, 2, DIALOG_STYLE_INPUT, "LOGIN", "Unesite vasu sifru da se logirate.", "Login", "Izlaz");
    }
    return 1;
}