public function update_tumblr()
 {
     $api_key = trim(ESSBSocialFollowersCounterHelper::get_option('tumblr_api_key'));
     $api_secret = trim(ESSBSocialFollowersCounterHelper::get_option('tumblr_api_secret'));
     $access_token = trim(ESSBSocialFollowersCounterHelper::get_option('tumblr_access_token'));
     $access_token_secret = trim(ESSBSocialFollowersCounterHelper::get_option('tumblr_access_token_secret'));
     $basename = trim(ESSBSocialFollowersCounterHelper::get_option('tumblr_basename'));
     if (empty($api_key) || empty($api_secret) || empty($access_token) || empty($access_token_secret) || empty($basename)) {
         return 0;
     }
     if (!class_exists('Tumblr')) {
         require_once ESSB3_PLUGIN_ROOT . 'lib/modules/social-followers-counter/Tumblr/Tumblr.php';
     }
     $tumblr = new Tumblr($api_key, $api_secret, $access_token, $access_token_secret);
     $response = $tumblr->followers($basename);
     if (!$response || !is_object($response)) {
         return 0;
     }
     if (isset($response->response) && isset($response->response->total_users)) {
         return $response->response->total_users;
     }
 }
 public static function tumblr()
 {
     $api_key = trim(ESSBSocialFansCounterHelper::get_option('tumblr.api_key'));
     $api_secret = trim(ESSBSocialFansCounterHelper::get_option('tumblr.api_secret'));
     $access_token = trim(ESSBSocialFansCounterHelper::get_option('tumblr.access_token'));
     $access_token_secret = trim(ESSBSocialFansCounterHelper::get_option('tumblr.access_token_secret'));
     $basename = trim(ESSBSocialFansCounterHelper::get_option('tumblr.basename'));
     if (empty($api_key) || empty($api_secret) || empty($access_token) || empty($access_token_secret) || empty($basename)) {
         return 0;
     }
     $tumblr = new Tumblr($api_key, $api_secret, $access_token, $access_token_secret);
     $response = $tumblr->followers($basename);
     if (!$response || !is_object($response)) {
         return 0;
     }
     if (isset($response->response) && isset($response->response->total_users)) {
         return $response->response->total_users;
     }
 }