What is the current way to retrieve posts from an open Facebook Group?

What is the data format to refund a completed payment?

The primary way to get data in and out of Facebook is by using a:

How do you get a User id in PHP API?

How can you get user_id of current session user using graph api in PHP (consider $facebook as the Facebook object)?

Which of these is not an option for targeting ads?

When using the photos.getAlbums method, what will happen if you omit the optional parameters?

A Facebook application can have an infinite session:

A developer has to be logged in to use the test console.

Which url would allow you to open a Facebook login box without leaving the application page?

When using the Groups.get method, what is returned if both optional parameters are omitted?