How To Find Table Value's Position?

Hi, the table will already be sorted based on when people join. table.insert will add the player's name at the end of the table. The if statement you have inside of the playeradded function will not work as the player joining will always be the player you need to add to the array.

gtg so i didnt get to test this: Serverscript:

local sortedPlayers = {}

local Text = ""
function getIndex(playerName)
    for i = 1, #sortedPlayers do
        if(sortedPlayers[i] = playerName)then
            return i
        end
    end
end

game.Players.PlayerAdded:Connect(function(plr)
    --player who just entered will never not be player
    table.insert(sortedPlayers, plr.Name)
end)

game.Players.PlayerRemoving:Connect(function(plr)
    table.remove(sortedPlayers, getIndex(plr.Name))
end)


while(wait(1))do
    Text = "Players: "
    --loop through the sorted list of players
    --i is the position in the table 
    for i = 1, #sortedPlayers do 
        Text = Text .. " " ..sortedPlayers[i]
    end
    print(Text)
end

Script:

--By enes223
local Remote = game:GetService("ReplicatedStorage"):WaitForChild("UserSender")

local Players = {}

local Text = ""

game.Players.PlayerAdded:Connect(function(plr)
    if not Players[plr.Name] then
        table.insert(Players,plr.Name)
        for i,v in pairs(Players) do
            Text = Text..v..","
            Remote:FireClient(plr,Text)
            Remote:FireAllClients(Text)
        end
    end
end)

game.Players.PlayerRemoving:Connect(function(plr)
    if Players[plr.Name] then
        Players[plr.Name] = nil
        for i,v in pairs(Players) do
            Text = Text..v..","
            Remote:FireAllClients(Text)
        end
    end
end)

Local Script:

--By enes223
local Sorter = game:GetService("ReplicatedStorage"):WaitForChild("Sorter")
local Remote = game:GetService("ReplicatedStorage"):WaitForChild("UserSender")

local U1,U2,U3,U4,U5 = script.Parent.User1,script.Parent.User2,script.Parent.User3,script.Parent.User4,script.Parent.User5
local I1,I2,I3,I4,I5 = U1.Index,U2.Index,U3.Index,U4.Index,U5.Index

local SortedTable = {}
local Indexes = {I1,I2,I3,I4,I5}

function Seperate(Text,Seperator)
    local SubNumber = 1
    local Line = Text:sub(1,SubNumber)
    repeat
        Line = Text:sub(1,SubNumber)
        SubNumber = SubNumber + 1
    until Line:find(Seperator)
    if Line:find(Seperator) then
        return Line:gsub(Seperator,"")
        end
end

function Init(Text)
            if not Text:find(",") then
            for i,v in pairs(SortedTable) do
                for j,k in pairs(Indexes) do
                    local Index = #Indexes
                    if k.Value == Index then
                        k.Parent.Image = game.Players:GetUserThumbnailAsync(game.Players[v].UserId,Enum.ThumbnailType.HeadShot,Enum.ThumbnailSize.Size60x60)
                        k.Parent.User.Text = v
                        Index = Index - 1
                        end
                end
            end
        else
            if not SortedTable[Seperate(Text,",")] then
            SortedTable[Seperate(Text,",")] = Seperate(Text,",") 
            Text = Text:gsub(Seperate(Text,",")..",","")
            Init(Text)
            end
        end
end

Remote.OnClientEvent:connect(function(Text)
    Init(Text)
end)