title: Dynamic url in facebook app tab
body: <p>I am newbie to facebook app and I am trying to create a first app of my php application as an iframe, I have created the app using </p>
  
  <p><a href="http://developer.facebook.com" rel="nofollow">http://developer.facebook.com</a>. </p>
  
  <p>but in page tab url, I need some dynamic url like: I want to set url like :</p>
  
  <p><a href="http://mydomain.com/index.php?r=site/index&amp;user_id=some_dynamic_value" rel="nofollow">http://mydomain.com/index.php?r=site/index&amp;user_id=some_dynamic_value</a></p>
  
  <p>How can I set this dynamic url for a tab url, can any one suggest me please</p>