hello please make a login system using php where the admin can login and logout$.$I am using visual studio code for it$.$the details should be stored in a file. The username and password should be administrator. I am very new to php so please explain it in a simple way. I also want you to add an option where i can apply this login and logout system to another php file i made called submitted.php$.$ So after the admin logs in$,$ they can use the php forum i made. Make it as short and simple as possible please