I'm building a website for didactic purpose. I have some .htm page accessible from all user and other pages accessible only for registered user with a database (username and passowrd).
My professor wants that I don't generate web pages with php, but I must have the .htm files for web pages.
For example for homepage I have "homepage.htm" and "hompage_logged.htm".
How can I prevent an unregistred user lo load a page for registered user if he knows the URL?