I was wondering if it is possible to consume the v2 version of the protocol in something other than C# and Java. I have tried to look everywhere, but can't determine if there are caveats etc. The main developers guide at google singles out these two languages.
So is it possible to have a web app written in PHP consume the v2 of the APIs? Specifically, I need to access the Documents, Contacts and Calendar.
Here is what you are looking for: http://code.google.com/apis/gdata/articles/php_client_lib.html
I asked some collegues of me who are using it and so far had no caveats.