[The_Moddler]

pawn Code:

stock SavePlayerStats(playerid)
{
    dini_IntSet(file, "Score", GetPlayerScore(playerid));
    dini_IntSet(file, "Money", GetPlayerMoney(playerid));
    dini_IntSet(file, "level", PlayerInfo[playerid][Level]);
    dini_IntSet(file, "Cold", PlayerInfo[playerid][Cold]);
    dini_IntSet(file, "Hot", PlayerInfo[playerid][Hot]);
    printf("Player id %d has his files saved", playerid);
    return 1;
}

public OnPlayerDisconnect(playerid, reason)
{
    SavePlayerStats(playerid);
    return 1;
}

It's enough if you do it like that.