A Day in the Life of WordPress
Let’s have a look at a typical day for Mr. WordPress–hereafter referred to as “Big W.” Usually, Big W gets requests from web visitors, figures out what they want, fetches the right information from the database, and then serves it up in the right theme template. The scene goes something like this:
Web Visitor: I’d like to see http://yourdomain.com/good_page/, please.
Big W: Sure, let me get that for you.
Big W steps away to:
Parse the request to figure out which post to fetch.