The system has elements of Aspect Oriented Programming (AOP), as well as the Observer pattern. Its power, however, is in the fact that an individual object does not need to implement any specific interface in order to act as either a Subject or an Observer; the system is globally available.

The script creates an object that publishes an event. This event then sends off messages to all of the other objects subscribing to it. A code example is included. You also can check out the code from its page on github (as a part of his Phly libraries) and play with it yourself.

There's just the one list currently (as hosted by omniti) but there's lots of subscribers. You can check out the signup page for more information on the list and get access to some of the archives of previous topics.

It seems a little strange to say (or write) it out loud, but, this month, php|architect turns five! To celebrate the release of our sixtieth issue (which was actually November), we have decided to remove all password protection from the PDFs you download from our sites (that is, both php|architect and Pymag).

Marco Tabini (publisher of the magazine) explained some of the reasoning behind the shift as fixing something that "has become a liability for us and a nuisance for our readers". They've made it so that not only will the future issues coming out of the group be password-less but you can also redownload the older issues without the password they previously had.

If you haven't gotten a chance to check out this great PHP-centered publication, check out their free issue to get an idea of what they have in store. Subscribing is easy - just check out their options and pick the one that's right for you - either print or PDF!

With all the hype (and money) surrounding buzzword terms like Web 2.0 and Rich Internet Applications (RIA), it's easy to wonder, "How can I integrate that into my PHP application?" Certainly, Asynchronous JavaScript and XML (Ajax) technologies that use JavaScript code are a good option. But you should also have a look at the Adobe Flex framework. With Flex, you can quickly build functional, attractive user interfaces in Adobe Flash that communicate to your PHP web application through XML.

They go through the usual of showing what Flex is and how it flows in a web application. From there, they move into the tutorial portion - installing the Flex Builder software, creating a new project, testing using Flex Builder and the construction of a sample application (store/access a list of subscribers).

Today's PHP security tip is short, sweet and easily actionable. It fits in well with the theme of the last one, to stay vigilant. Here's another resource for you to consider: If you are not already subscribed, you should subscribe to the Security Focus newsletter.

He links to their signup page and points out the most useful of their offerings - the BugTraq list.

BugTraq is a full disclosure moderated mailing list for the detailed discussion and announcement of computer security vulnerabilities: what they are, how to exploit them, and how to fix them.

After a 3+ month hiatus, the podcast is back with a newscast on happenings in the PHP world. We've committed to a newscast every two weeks (every second Thursday), starting today.

For all you who have written in to say you miss it, thank you. Your support and inquiries pushed us to get back on track.

Just like before, you can check out the main website to get the full details on the podcast (and upcoming shows) and grab this latest show for your enjoyment. Oh, and if you want to subscribe - here's the feed: http://podcast.phparch.com/podcast/rss/index.xml