DevShed takes a look at another of the design patterns in a new series starting with this new tutorial - a look at the implementation of Adapter objects in PHP.

You may have already encountered situations in coding PHP applications in which you would like to use inheritance, but could not for one reason or another. Fortunately, there is an alternative for these situations that can help you achieve the same result. In this first article in a two-part series, you'll learn about the adapter pattern.

They start off with the basics of the Adapter pattern and move quickly into the first definition of a class using them - a directory processor. Once that's built, they show how it all works with a more practical example.