April 2026
Intermediate
1009 pages
34h 15m
English
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15 Sessions
Sessions rely on cookies but are more convenient to use. Although using sessions is also possible without cookies, this is not recommended.
HTTP is a stateless protocol; the last chapter pointed this out often enough. Cookies are only one way of circumventing this restriction. The main problem with cookies from the end user's point of view is that they can be used to create user profiles within certain limits. The main problem with cookies from the website developer's point of view is that they can be deactivated in the browser. Or rather, they could be—but more on that later.
One possible solution can be expressed in one word: sessions.[ 100 ] A session occurs when a surfer visits a website. So if you call up the homepage of an online ...
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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.