DevShed ends another of a series of articles looking at one of the many design patterns out there (specifically the Bridge pattern) with this last tutorial - "Creating a MySQL Abstraction Layer with Bridge Classes in PHP 5".

The question that comes up now is the following: is there anything else that can be said about the bridge pattern? Of course there is! In this final tutorial I'm going to show you how to create a highly expandable abstraction layer that will allow you to work with MySQL using different libraries. This sounds interesting, right?

They start with the abstraction layer itself, creating a simple group of methods to work with a MySQL database. On top of that they create the bridge class that the resulting application can use to seamlessly use either mysql or mysqli without much code change. Finally, they bring it together in a simple application that grabs user information from a database table.