https://developers.google.com/drive/web/quickstart/quickstart-php
You can authorize your server to interact directly with GD
To test multiple examples of the API, you have to authorize the application to see the restults.
https://developers.google.com/drive/v2/reference/
Create Folders from Google Drive API
https://developers.google.com/drive/web/publish-site
Authorize Web Application on Google API (Dr Edit Example)
https://developers.google.com/drive/web/examples/php