On the Microsoft adCenter website, Walter Poupore has made a few posts to his blog about integrating PHP with various parts of the adCenter technology. Topics include:

• How to Check the Status of an Ad Group in PHP (V5)
• How to Create Keywords in PHP (V5)
• How to Create Ads in PHP (V5)
• How to Create Ad Groups in PHP (V5)

Check out his blog listing for more.