If you are using facebook app and have some engaging users, posting activity to their wall can come in handy. Activity about their photos, likes and comments are the most common feature posted to their timeline. In this tutorial you will learn to post status/link/images to your timeline with php and graph api.
In case if you are a newbie, Watch the following Video before proceeding.
Permission required to post on users Timeline
To post to user timeline you will need “publish_actions” permission. Also due to Facebook Feb 6, 2013 changes you will not be able to post to your friends wall using graph api. You can only post to your timeline only.