title: How to extract Facebook Access token Expiration Info
body: <p>is there ay way to get the Expiration date of the access token, I need this so I can refresh my session, also I want this way so I can avoid to look up on facebook user data when being fetch via PHP cURL.</p>
  
  <p>also on this link
  <a href="https://developers.facebook.com/tools/access_token/" rel="nofollow noreferrer">https://developers.facebook.com/tools/access_token/</a>
  if I click the DEBUG button in one of my custom app, I can see this info (for example)</p>
  
  <pre><code>App ID: 23131XX0000123 : My Custom App
  User ID: XX99858XX : Mario Bro
  Issued: XX11111XX : 2:00 pm Feb 10 2012
  Expires: XX11111XX : 3:00 pm Feb 10 2012
  Valid:  True
  Origin: Unknown
  Scopes: email user_likes
  </code></pre>
  
  <p>and it display the expiration date from that app. Is there a way I can get that info in PHP SDK or in a graph URL command?</p>