In an excerpt from this book from Packt Publishing, Martin Brampton look sat access control for content management systems and considerations that need to be made to make it effective.

Now we have some ideas about database, we quickly run into another requirement. Many websites will want to control who has access to what. Once embarked on this route, it turns out there are many situations where access control is appropriate, and they can easily become very complex. In this chapter we look at the most highly regarded model'"role-based access control'"and find ways to implement it. The aim is to achieve a flexible and efficient implementation that can be exploited by increasingly sophisticated software.

He looks a the different kinds of access control (discretionary access control, mandatory access control) and topics surrounding them like:

• Adding Hierarchy
• Avoiding Unnecessary Restrictions
• Special Roles
• Implementation Efficiency
• Real Difficulties

The tutorial finishes up with the start of a hierarchical access control system (including a few screenshots showing the tables and their relationships).

On the Ibuildings blog today Marcello Duarte has a new review of the Packt Publishing book "PHP5 CMS Framework Development" (by Martin Brampton).

Martin left Mambo (before they announced to drop support for PHP4 last September) to write his own CMS and "evolve out of the Mambo history", by taking advantage of PHP5 OO enhancements. The result is Aliro: a CMS, a framework and an extension project with traits and genes of the Mambo family. Aliro code is used throughout the book to support and illustrate his presentation.

Topics of the different chapters include basic CMS system needs, organizing code, extensions and editing and presenting content.

On the PHPClasses.org website there's a new book review posted from Alexandre Altair de Melo about a new book from Packt Publishing - "PHP 5 CMS Framework Development" (by Martin Brampton).

Often developers have to think about several aspects of the architecture of a system for the Web, not necessarily restricted to requirements of the software. With this in mind the book "PHP 5 CMS - Framework Development" is very rewarding reading.

Alexandre talks about the author of the book, the wide range of topics discussed in it (some not just applying to CMSes) and a breakdown of the contents of each chapter.

It is great work from the book author and the publisher, as we now have another great title, not only about PHP, but also about designing an architecture for software not just for only for creating content management systems.