9

-- Note it's global, making variable global
-- puts it into thing called 'enviroment' which you can
-- access using getfenv, it's performance inefficient
-- so i don't recommend ever doing this
var2 = "Hmm"

local playerValue = 2

local chosenVar = getfenv(1)["var" .. playerValue]
print(chosenVar)
-- > Hmm

-- First argument of getfenv is level of the enviroment
-- 1 and 0 is current enviroment, 2 would be enviroment
-- of function that called this function, 3 would be
-- function that called the function that called this
-- function and so on