migliori

<?php
include_once 'google-api-php-client/vendor/autoload.php';

$client = new Google_Client();

$application_creds = 'service-account-credentials.json';

$credentials_file = file_exists($application_creds) ? $application_creds : false;
define("SCOPE",Google_Service_Calendar::CALENDAR);
define("APP_NAME","Google Calendar API PHP");