Some Highlights from TED

You need to know about TED, if you don't already. TED stands for "Technology, Entertainment and Design" and is essentially an annual conference renowned for the quality of its speakers and presentations.

You can't go to TED talks unless you're remarkably eminent - a former US president or Nobel Prizewinner, say - but it is to TED's eternal credit that you can watch hours and hours of video recordings of talks online, for free.

The subject matter is eclectic, to say the least, but the one thing that all the talks have in common is that they are utterly fascinating. It's kind of tricky to pick highlights, and far easier to just dive in and spend hours clicking around. But nevertheless, here are three talks from TED that particularly appealed to me.

Command-Line Subversion Tutorial, Part 2: Importing, Branching and Merging

In Command-Line Subversion Tutorial, Part 1: The Basics, I covered many of the more common svn commands, and hopefully illustrated a typical SVN workflow.

This time around I'd like to tackle some of the commands involved in managing a project within a Subversion repository, specifically those that you'll need in order to import a project to a repository, and to branch and merge a project's codebase.

A First Look at the New WURFL API for PHP

About a month ago, the New WURFL API for PHP was officially released. While the code had been available in one form or another for some time, the official release coincided nicely with the early stages of a new project at work, so it seemed like an appropriate time to have a look at the API and see if it was something we wanted to use.

By way of a refresher, WURFL is a "Device Description Repository" - a huge open-source XML-based database of information regarding mobile handsets and their capabilities. I've discussed WURFL in the past, for example here. Prior to this release, the only practical method of querying WURFL in real time from PHP was via a library named Tera-WURFL, which I blogged about here. In fact, both WURFL and Tera-WURFL were covered in an article I wrote for php|architect magazine last year.

We've generally been very happy with Tera-WURFL, but it's always worth considering one's options, so what follows is an overview of my experiences with, and first impressions of the New WURFL API.

Unit Testing Code which Consumes SOAP Services

One of the trickiest aspects of unit testing or Test Driving an application's code is testing those parts of the system which depend on an external system, such as a database or a SOAP service.

In this post I'll outline an approach to testing a class which happens to communicate with a third-party SOAP service using PHP's built-in SoapClient class. Hopefully, the principles involved will be applicable to the more general case of testing code which relies on an external system.