Uses:
GuzzleHttp/6.2.1 - http://docs.guzzlephp.org/en/stable/overview.html#installation
curl/7.51.0
PHP/5.6.29
Use:
$gc = new \GoogleCaptcha\Client($key, $response);
$access = $gc->get_access();Where:
$response - the user response token provided by reCAPTCHA, verifying the user on your site.
$key - the shared key between your site and reCAPTCHA.
get_access() - returns true or false