By default, there are no method calls to access that mail data within the PHP SDK.
Since you will already have a valid OAuth session using the PHP SDK, you will just need to do a few things:
- Make sure that you add the permission in your app to have access to Mail
- You can use the OAuth access for Mail to get the data that you are looking for:
http://developer.yahoo.com/mail/Jonathan LeBlanc
Technology Evangelist
Yahoo! Developer Network
Twitter:
@jcleblanc