the variables are local and therefore cease to exist once the script is done running
so no
i didnt figure the overwriting thing would be a big hurdle for you

based on your login system you have a firm enough grasp that you could make it run off .txt rather than hash thereby making it easier to edit

if not let me know and ill do it
as far as editing goes with .txt you can just open the damn thing and type it in
simple is good