This tutorial will show you exactly how to build your own file manager in PHP, allowing you to upload, edit, delete and download files online.

In this article Dennis Pallett talks about the two security principles of PHP: filter input, escape output. Read more to learn about basic PHP security.

No more Ajax, Tags, Web 2.0 or anything else: it’s back to basics with this article on Arrays in PHP, by Dennis Pallett.

In the first of a new “Creating a chat script with PHP and Ajax” series, Dennis Pallett shows you how to build a live chat script using PHP, Ajax and JavaScript.

In the third and final part of the ‘Building an advertising system with PHP’ series, Dennis Pallett shows you how to track impressions and clicks on each ad, and display neat charts of statistics collected.

In this tutorial you will learn how to create your own “Who’s Online” script, including the location of each of your visitors.

In the second part of the ‘Building an advertising system with PHP’, Dennis Pallett shows you how to use a database to power the advertising system. In addition, we will also add two new features to our advertising system, and a management page.

In this first part of a new three-part series Dennis Pallett will show you how to build a bare-bones advertising system using PHP and JavaScript.

In this tutorial Dennis Pallett shows you how to do Ajax, also known as remote scripting, without having to use the XmlHttpRequest object, using some clever PHP and JavaScript.

In part 2 of our Using WordPress as a Content Management System article series Dennis Pallett show you exactly how to change a base install of WordPress into a fully usable CMS.