TwitterOAuth::lastStatusCode PHP Method

    function lastStatusCode()
    {
        return $this->http_code;
    }

 protected function authTwitter($save_name)
 {
     $config = $this->config;
     $conn = new TwitterOAuth($config['consumer_key'], $config['consumer_secret']);
     $request_token = $conn->getRequestToken();
     if ($request_token === false || $conn->lastStatusCode() != 200) {
         throw new RuntimeException("Error fetching Twitter auth token: Status code " . $conn->lastStatusCode() . '; ' . $conn->http_error);
     }
     $url = $conn->getAuthorizeURL($request_token);
     // Automatically send the user to the auth page.
     $ui = new UI();
     $ui->openBrowser($url);
     $pin = $ui->readline("Please visit {$url} then type the pin number: ");
     $conn = new TwitterOAuth($config['consumer_key'], $config['consumer_secret'], $request_token['oauth_token'], $request_token['oauth_token_secret']);
     $access_token = $conn->getAccessToken($pin);
     if ($access_token === false || $conn->lastStatusCode() != 200) {
         throw new RuntimeException("Error fetching Twitter access token: Status code " . $conn->lastStatusCode() . '; ' . $conn->http_error);
     }
     $this->config['oauth_token'] = $access_token['oauth_token'];
     $this->config['oauth_token_secret'] = $access_token['oauth_token_secret'];
     echo "Your Twitter token is " . $access_token['oauth_token'] . "\n";
     echo "Your Twitter token secret is " . $access_token['oauth_token_secret'] . "\n";
     echo "(Written to twitter-{$save_name}.txt)\n";
     if (file_put_contents("twitter-{$save_name}.txt", $access_token['oauth_token'] . "\n" . $access_token['oauth_token_secret'])) {
         return;
     }
     throw new RuntimeException("Failed to save oauth token to twitter-{$save_name}.txt");
 }