title: Graph API --> liking the post of a fan of the page I manage using the page account token, not working
body: <pre><code>    $accounts = file_get_contents("https://graph.facebook.com/me/accounts?access_token=" . $access_token); 
      $accounts_obj = json_decode($accounts);
      $page_access_token = $accounts_obj-&gt;data[0]-&gt;access_token;
  
      $attachment = array( 
                          'access_token' =&gt; $page_access_token
                      );
  
      $likes_response = $facebook-&gt;api("/".$object_id."/likes", 'post', $attachment);
  </code></pre>
  
  <p>trying to like the post of a fan of the page I manage.
  whether or not I use the page_access_token or the regular access_token, I get this error:</p>
  
  <blockquote>
    <p>Fatal error: Uncaught OAuthException: (#200) Permissions error thrown in ...../htdocs/facebook-php-sdk-master/src/base_facebook.php on line 1332</p>
  </blockquote>
  
  <p>... the regular access token is a 2 months (60 days) access token.</p>