Instagram\Instagram::getUserByUsername PHP Method

    public function getUserByUsername($username)
    {
        $searchResults = $this->searchUsers($username);
        $users = $searchResults->getUsers();
        foreach ($users as $user) {
            if ($username == $user->getUsername()) {
                return $user;
            }
        }
        throw new InstagramException("Failed to find User by Username");
    }

 public function getFeed($options)
 {
     $since_time = empty($options['sa_since_time']) ? 1 : $options['sa_since_time'];
     // $auth_config = array(
     // 	'client_id' => $options['sa_insta_client_id'],
     // 	'client_secret' => $options['sa_insta_client_secret'],
     // 	'redirect_uri' => $options['sa_insta_callback'],
     // 	'scope' => array('basic')
     // );
     // $auth = new Instagram\Auth($auth_config);
     // if (!empty($_GET['code'])) {
     // 	$_SESSION['instagram_access_token'] = $auth->getAccessToken($_GET['code']);
     // }
     // else {
     // 	$auth->authorize();
     // }
     // $this->log($_SESSION['instagram_access_token']);
     $instagram = new Instagram();
     $instagram->setAccessToken($options['sa_insta_access_token']);
     try {
         // $user = $instagram->getUser('343124091');
         $user = $instagram->getUserByUsername($options['sa_insta_screenname']);
         // $user = $instagram->getTag('freefly'); // if wanting to use tags..
         $media = $user->getMedia(array('min_timestamp' => $since_time));
     } catch (ApiException $e) {
         $this->log($e);
         return array('error' => 4, 'message' => 'Error fetching Instagram feed: <span class="social-feed-error">' . $e->getMessage() . '</span>');
     }
     // return an array with success = false if $response is empty..
     if (count($media) == 0) {
         return array('error' => 1, 'message' => 'No Instagram items found.');
     }
     $data = array();
     $date_added = time();
     $since_ids = array();
     foreach ($media as $photo) {
         $p = array();
         $p['id'] = $photo->getId();
         $p['author'] = $photo->getUser()->getUserName();
         if ($photo->getCaption()) {
             $p['message'] = $photo->getCaption()->text;
         }
         $p['picture'] = $photo->getStandardResImage()->url;
         $p['link'] = $photo->getLink();
         $p['date_added'] = $date_added;
         $p['date_created'] = $photo->getCreatedTime();
         // already a unix timestamp..
         $since_ids[] = $photo->getCreatedTime();
         array_push($data, $p);
     }
     if (count($data) == 0) {
         return array('error' => 3, 'message' => 'No new Instagram items found.');
     }
     $res = array('data' => $data, 'since_time' => max($since_ids) + 1);
     // someone somewhere must be using => instead of >, so I'm adding 1 here to not include the equality..
     return $res;
 }