PayPal\Common\PPApiContext::getConfig PHP Method

    public function getConfig()
    {
        return $this->config;
    }

 /**
  * Returns the URL to which the user must be redirected to
  * logout from the OpenID provider (i.e. PayPal)
  *
  * @param string $redirectUri Uri on merchant website to where
  * 				the user must be redirected to post logout
  * @param string $idToken id_token from the TokenInfo object
  * @param PPApiContext $apiContext Optional API Context
  */
 public static function getLogoutUrl($redirectUri, $idToken, $apiContext = null)
 {
     if (is_null($apiContext)) {
         $apiContext = new PPApiContext();
     }
     $config = $apiContext->getConfig();
     $params = array('id_token' => $idToken, 'redirect_uri' => $redirectUri, 'logout' => 'true');
     return sprintf("%s/v1/endsession?%s", self::getBaseUrl($config), http_build_query($params));
 }