Simple PHP unique visitor counter

I was bored and in need of a small coding session, I chose a unique visitor counter since I have just set up Google Analytics on my site and wanted to see how easy it was to create a counter script. Only one file to download and use, it stores its results in a text file that is created when the script is first run. Once installed, you can include it with a php include, as an image, what ever you want using RESTful styled URIs. Have a look at the documentation here: http://lukemorton.co.uk/counter.php Lightweight and allows you to share the data if you wish in XML and JSON formats.