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Using Cookies With JavaScript
Store and retrieve persistent data with cookies in JavaScript

| Big Brother Is Watching |

In your travels across the Web, I'm sure you've experienced Web sites that seem to know you only too well, displaying your name and email address when you visit them and (in some cases) even remembering the pages you visited the last time you were there. Before you allow your paranoia full rein, though, let me tell you that you probably provided the information yourself to the site in some previous visit, and what you see when you return is merely the results of your own actions, reprocessed for a better visitor experience.

So how do they do it? Well, most of these sites save personal information, such as your name and email address, in files on your hard drive, and read these files every time you re-visit the site. These files are known as "cookies", and they're a simple and easy way to add personalization features to your site. Cookies can also be used to record information about your activities on a particular site; however, they can only be read by the site that created them.

If you have a Web site which caters to a large number of visitors, think of how beneficial similar technology could be to you. You could recognize frequent visitors and greet them by name, "remember" the pages they browsed on their last visit and pop up recommendations for similar content, personalize their experience so that they see your Web site in their favourite colours or layout...the possibilities are endless. And over the course of this article, I'm going to get you started down this particular road, by showing you how to read and write cookies using JavaScript, my favourite language for client-side scripting.


How to do Everything with PHP & MySQL
How to do Everything with PHP & MySQL, the best-selling book by Melonfire, explains how to take full advantage of PHP's built-in support for MySQL and link the results of database queries to Web pages. You'll get full details on PHP programming and MySQL database development, and then you'll learn to use these two cutting-edge technologies together. Easy-to-follow sample applications include a PHP online shopping cart, a MySQL order tracking system, and a PHP/MySQL news publishing system.

Read more, or grab your copy now!


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