I have a problem with Facebook. Let me explain what I'm trying to do. My friend granted me access to his fanpage as administrator. I would like to get all feeds from fanpage's wall, by using php script on my website. How can I do that ? I don't have any app id or secret id, because this is not an app - it's fanpage.
You can easily retrieve posts from feed connection of page (use posts connection if you only want posts Page own).
You'll need an application to do so because both posts and feed connection require any valid access_token for access.
Once you have access_token you may simple retrieve the posts with Graph API:
http://graph.facebook.com/PAGE_ID/feed?access_token=...