How to import photos from Facebook?

Question

I noticed when I visit photo printing websites, they ask you if you would like to import your photos from Facebook. How do they do it? Does Facebook provide API to import us

Answer 1

/**
   * get_albums()
   *
   * @param long $uid
   * @return array
   */
    function get_albums($uid=null)
    {
         if (empty($uid))
            $uid = $_REQUEST['fb_sig_user'];
        try
        {
            return $facebook->api_client->photos_getAlbums($uid,null);
        }
        catch (FacebookRestClientException $ex)     
        {
            return array();
        }
    }

/**
 * get_photos()
 *
 * @param bool $bool_pids
 * @param mixed $aids (array of album ids or null)
 * @return array
 */
 function get_photos($bool_pids=true, $aids=null, $pids=null)
 {
    try
    {
      $p = $facebook->api_client->photos_get(null, $aids, $pids);
    }
    catch (FacebookRestClientException $ex) { }

    if ($bool_pids)
    {
            $pids = array();
            if (!empty($p))
            foreach($p as $p0)
                    $pids[] = $p0['pid'];
            return $pids;
    }
    else
            return $p;
 }