How do I make pages in individual directories?
I have been curious for a long time about how to make web pages with a page in each directory.
Usually, I just create one php page and leave it as index.php and use variables to call all other pages.
This works fine, but I'd rather not develop sites this way. I can easily add my page code to each page in the directory, but I want to use one central document for governing all my PHP. What is the most professional way to handle this? I can think of many solutions, but what is the paradigm?