How do i get a player into a server script?

There are various ways to get the Player in a ServerScript:

1. Using the PlayerAdded event.

You can make up a function called with this event, which you can grab the player from the parameter provided by the event.

game:GetService("Players").PlayerAdded:Connect(function(player)
    -- code
end)

2. Getting the player when having the character.

If you have the character you can also get the player with this built-in method in the Players' Service.

local player = game:GetService("Players"):GetPlayerFromCharacter(character)

There are more ways to get the player in specific contexts, but I'd recommend to use PlayerAdded. Have a good day!

Use remote event Create a remoteevent in ReplicatedStorage and name it as in the event variable

player = game.Players.LocalPlayer
local event = "name of remote event here"
player.CharacterAdded:Connect(function() -- Get it on characteradded
    game.ReplicatedStorage:FindFirstChild(event):FireServer()
end)

. On a server script:(Put in ServerScriptService)

event = "name of remote event here"
game.ReplicatedStorage:FindFirstChild(event).OnServerEvent:Connect(function(player)
print(player)
end)

You can use PlayerAdded and add the player to a table:

local playerTable = {}

game.Players.PlayerAdded:connect(function(player)
    for i, v in pairs(playerTable) do -- a loop to check if the player is already in the table
        if v == player then
            return
        else
            table.insert(playerTable, player) -- insert player in the table
        end
    end
end)