title: facebook storing access token for offline access with php sdk - really confused
body: <p>I want our web app to be able to update a users wall using the offline access permission.  I'm going around in circles at the moment because I don't seem to be able to store the access token.  I've tried using example.php but am not retaining the session (I think, please forgive me I'm a newbie)</p>
  
  <p>The way I want it to work is as follows:</p>
  
  <p>User Clicks add Facebook - i.e. our app is approved by user (I can do this using the graph api)</p>
  
  <p>Token is returned and we save it in database (this bit I'm struggling to get my head around) to enable a post later.</p>
  
  <p>If anyone can give me a step by step guide I'd really appreciate it.  Please don't just redirect me to a the developers page at facebook.</p>