Facebook Graph API has been for a while now but in the past we were developing one of the facebook application for our client on php/mysql platform using yii framework. There was one requirement from the client to publish the media file(video / flash) on the friend’s wall so that it can be played on user’s wall. The main challenge with facebook application development is vague/obsolete documentation on the facebook wiki. After throughly investigation, we found two ways to publish media on friend’s wall.
Second way is to use Graph API:
http://www.facebook.com/dialog/feed?app_id=app_id&link=link&picture=picture &caption=caption&name=name&source=source &message=message&redirect_uri=response
We assume that you have already worked on facebook api. We would like to answer your questions.