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As you know from the introductory piece, "Web Programming 101",
web programming is a game of getting user input, processing that
input, and returning a dynamic response. Thus, the first thing
that you must learn how to do is get user input from a web browser
to a web server.
Fortunately the HTTP protocol provides two main ways to send
information to a web server above and beyond the URL of a
requested file.
These two ways are the POST and GET methods.
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HTTP/1.0 also specifies a HEAD method that is used to transmit header
information only. It is used primarily by indexing search
robots and not web programmers so we will not discuss it here.
Similarly we will not discuss the PUT or the DELETE methods that
are a part of the HTTP 1.1 specifications still in formulation.
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