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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Why Use Session Management?
Session management is a means by which a user’s identity can be preserved between requests. Session management in a Web environment works by passing an identifier to the user with a response, and then having the user pass back that identifier with subsequent requests to keep track of his session. This identifier can then be used to correlate the user with information relating to his activity. For example, if the user is shopping on your site, you can keep track of all of the items he’s placed in his shopping basket using session management.
As you’ve already learned, HTTP is a connectionless protocol. When a user requests a Web page, the server sends the page and forgets that the browser ever asked. If a Web site ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.