phpmaster recently posted an article titled Introduction to MongoDB. I’m not entirely sold on non-relational databases yet, in that while I can see how wonderfully beneficial they can be in many situations, they’re not as ubiquitously useful as all the hype would seem to suggest. But in any case, a good article like this one, which introduces MongoDB, shows how to install support for it in PHP (although the instructions are for Unix-like systems), and provides code for actually interacting with a MongoDB database is worth the time to read.