In This Tutorial there is special new API to detect player language.

local result,languageCode,areaCountry = Player:GetLanguageAndRegion(playerid);

If your Account created in Indonesia and using English language on current Session. It will output this

result = 0 
languageCode = "en"
areaCountry  = "ID" 

Let's Jump Straight into the Tutorial

The file of this script must be on top of script you are going to use translation. Copy and Paste this Script Bellow into “Language Session of Player”

playerSession = {}
ScriptSupportEvent:registerEvent("Game.AnyPlayer.EnterGame",function(e)
    local playerid = e.eventobjid;
    local r,lc,ar = Player:GetLanguageAndRegion(playerid);
    if(r==0)then 
        playerSession[playerid]={lc=lc,ar=ar};
        else 
        playerSession[playerid]={lc="en",ar="EN"};
    end 
end)
 
lang = {Chinese="cn",English="en",Taiwan="tw",Thailand= "tha",Espanyol="esn",Portuguese="ptb",French="fra",Japan="jpn",Arabic="ara",Korea="kor",Vietnam="vie",Russia="rus",Turkey="tur",Italia="ita",German="ger",Indonesia="ind",Malaysia = "msa"};
T_Text = {};
function toIndex(nonIndex)
    return string.gsub(nonIndex," ","_");
end 
function getSession(playerid)
    return playerSession[playerid].lc
end 
T_Text_meta = {
    __index = function(table,key)
        T_Text[key]={};
        return T_Text[key];
    end,
    __add = function(a, b)
        a[toIndex(b[3])][b[1]] = b[2]
        return a[toIndex(b[3])][b[1]];
    end,
    __sub = function(a,b)
        a[toIndex(b[2])][b[1]] = nil;
    end,
    __call = function(t,playerid,key)
        return t[toIndex(key)][toIndex(getSession(playerid))]
    end
}
T_Text = setmetatable(T_Text,T_Text_meta);
function createText(langcode,keystring,value) return T_Text + {langcode,value,keystring}; end