September 2002
Intermediate to advanced
544 pages
13h 6m
English
Content preview from Sams Teach Yourself CGI in 24 Hours, Second Edition
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How CGI Programs Work
Now I’m ready to get down to the nuts and bolts of how CGI programs work. The great thing about CGI is that it’s an extremely simple interface. If you’re familiar with UNIX-based operating systems, you will recognize the concepts that CGI is grounded in.
As I’ve already discussed, CGI is a set of conventions that allows Web servers and external programs to communicate. To illustrate how CGI programs work, I’m going to include a description of the entire HTTP session, so you can understand at a high level how it all fits together.
How Resources Are Requested
An HTTP session is initiated when a Web client (usually a Web browser) requests a resource from a Web server. As I’m sure you already know, these resources are identified ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.