AWIS gives s very simple executable php file to access their Alexa information. This chunk of code has some of AWIS functions, breaks AWIS functions up into cleaner parts and has added functions to make it even easier for the average php user to use right out of the box.
To run, just change the defines for ACCESS_KEY_ID and SECRET_ACCESS_KEY in the .inc file and run the .php file.
These details are provided for information only. No information here is legal advice and should not be used as such.