Hi there Guild Wars 2 players and developers,
I just want to drop a quick note that I have made a simple but solid PHP implementation of an API client. Please have a look at the github project.
The API client contains a simple filesystem cache (for saving bandwidth and resources) and a small test to display the client’s capabilities.
Due to limited time I am not sure if I am able to keep on developing (I even play GW2 very rarely now), but feel free to fork the project and make it your own. Of course, I will try to answer any questions that may occur.
Have fun and thanks, ArenaNet, for this beautiful open API.