July 2025
Beginner
768 pages
16h 54m
English
Content preview from PHP, MySQL, & JavaScript All-In-One For Dummies, 2nd Edition
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Chapter 6
Sessions and Carts
IN THIS CHAPTER
Storing data
Using cookies
Working with sessions
Playing with carts
In Chapter 3 of Book 2, I show you how to use the HTTP GET and POST methods to send data from one web page to another. Although they work fine for clicking links and submitting forms, they're somewhat impractical to use for sharing data between all the web pages in an application. To do that requires some other form of persistent data, someplace where you can temporarily store it so that your PHP programs can access the data at any time from any page. This is where sessions and carts help out. This chapter explains how they work, why you shouldn’t be afraid of them, and how to use them as another piece of your dynamic web applications.
Storing Persistent Data
Most dynamic web applications require some way of temporarily storing data while site visitors work their way through the application's web pages. I’m not talking about long-term storage of data (I cover that in Book 5). I’m talking about short-term storage of data that one web page stores and another web page ...
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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.