The Silver Lining Blog has just published a guest article on how to get started with PHP on Windows Azure (http://blogs.msdn.com/b/silverlining/archive/2012/05/14/azure-real-world-optimizing-php-applications-for-the-cloud.aspx).
The article offers a, in my eyes, very comprehensive look at the different aspects of moving your PHP projects over to the Windows Azure cloud, including (but not limited to):
So if you are a PHP developer, you should really check this out!
-Daniel