Time Travel – Breadcrumbs and History with PHP

What are you users up to while the visit your website? PeterJames takes a look at how you can use a technique known as”breadcrumbing” to track your visitors’ habits and usage of yourPHP web applications.—by Peter James

The Object Oriented Evolution of PHP

One of the key ingredients in the upcoming version 5 of PHPwill be the Zend Engine 2.0, with support for a brand newobject-oriented programming model.

In this article, Zend Engine co-creator and leader of the PHPdevelopment group Zeev Suraski describes the evolution of theobject-oriented programming support in PHP, covering the newfeatures and changes that are scheduled for PHP 5.

—by Zeev Suraski

PHP in an N-Tiered World

Dave Palmer writes about using PHP in a complex n-tierenvironment by interfacing directly with Java through theEnterprise Java Beans (EJB) platform.—by Dave Palmer

Creating a Customized Template-Engine

For the do-it-yourselfers, Andreas Demmer shows how it ispossible to build a customized templating engine that perfectlyfits your needs, thus providing an alternative to off-the-shelfsolutions that may be too complex (or not complex enough) for yourneeds—by Andreas Demmer

Building a Turing Test with PHP and the GD Library

Bonus! Marco Tabiniexplores the world of Turing Tests—little applicationdesigned to prevent “bots” from accessing your websites.—by Marco Tabini

Using, Reusing and Extending Smarty

Tomica Jovanovic’s article demonstrates how to take bestadvantage of the Smarty templating engine. If you’re planning tocreate a content-driven website, this article is for you!—by Tomica Jovanovic

Data Fingerprinting with Hash Functions in PHP

How safe is the data you send across the Internet throughyour web forms? This month, Leon Vismer delves into the world ofHashed Message Authentication Code (HMAC), a sometimes tricky butvery useful technique to protect the integrity of yourinformation.—by Leon Vismer