How do i make a script which teleports a player?

Before you read this; i have very limited knowledge of lua.

This is a script i got off the wiki.

game.Workspace.Player.Torso.Position = Vector3.new(tonumber(x),tonumber(y),tonumber(z))

"x", "y" and "z" are meant to be chosen by the player.

I need to:

A) make a GUI

B) allow the player to input x, y and z values into the GUI

I don't know if the script actually works. I tested it and apparently, it was wrong. If it IS correct, then tell me.

You're right, that code won't quite work. It'll teleport for the torso, but not the rest of the body, resulting in death.

To properly do this, I would suggest using char:MoveTo(Vector3.new(tonumber(x),tonumber(y),tonumber(z)))

Another thing I noticed however, is that this code would only work if the person's name was "Player." To fix this, I would consider getting the player from local plr = game.Players.LocalPlayer since this involves a LocalScript, and then get the character from local char = plr.Character or plr.CharacterAdded:wait() and using the MoveTo() on char

That approach off the wiki is slightly outdated but a similar approach can still work as an alternative to MadWorlds solution of using MoveTo(), you can also just CFrame the torso.

local x,y,z = 0,0,0
game.Workspace.Player.Torso.CFrame = CFrame.new(tonumber(x),tonumber(y),tonumber(z))

A quick and efficient way, is to do this

Create a part in workspace disable collision, anchor it, change the transparency to 0 and lastly, move it to where you want to be teleported.

I'm also assuming the script is a local script.

local plr = game.Players.LocalPlayer
local char = plr.Character or plr.CharacterAdded:wait()
local tp = workspace.TPBrick -- change "TPBrick" to the part you made.

char.HumanoidRootPart.Position = Vector3.new(tp.Position) -- code that teleports you.