如何使用PHP将事件插入用户谷歌日历？

我有以下代码插入我的特定谷歌日历.它非常成功,但如何让用户可以添加到自己的日历？有人可以帮助我…我的预期结果就像用户可以通过谷歌登录….这意味着用户可以添加到他们自己的谷歌日历.谢谢.

要添加到我的特定日历的代码

require_once './vendor/google/apiclient/src/Google/autoload.PHP';

$key_file_location = 'Calendar-96992da17e2dda.p12'; // key.p12 to create in the Google Api console

$client_id = '[e-mail]';
$service_account_name = '[e-mail]'; // Email Address in the console account

if (strpos($client_id,"gserviceaccount") == false || !strlen($service_account_name) || !strlen($key_file_location)) {
    echo "no credentials were set.";
    exit;
}

/** We create service access ***/
$client = new Google_Client();  

/************************************************
If we have an access token,we can carry on.  (Otherwise,we'll get one with the help of an  assertion credential.)
Here we have to list the scopes manually. We also supply  the service account
 ************************************************/
if (isset($_SESSION['service_token'])) {
        $client->setAccesstoken($_SESSION['service_token']);
}
$key = file_get_contents($key_file_location);
$cred = new Google_Auth_AssertionCredentials(
    $service_account_name,array('https://www.googleapis.com/auth/calendar'),// ou calendar_readonly
$key
);

$client->setAssertionCredentials($cred);
if ($client->getAuth()->isAccesstokenExpired()) {
    $client->getAuth()->refreshTokenWithAssertion($cred);
}
$_SESSION['service_token'] = $client->getAccesstoken();



// Get the API client and construct the service object.
$service = new Google_Service_Calendar($client);


    /************* INSERT ****************/
$event = new Google_Service_Calendar_Event(array(
  'summary' => 'My Summary','location' => 'My Location','description' => 'My Description','start' => array(
    'dateTime' => '2015-12-31T09:09:00','timeZone' => 'Asia/Singapore',),'end' => array(
    'dateTime' => '2015-12-31T17:16:00','attendees' => array(
    array('email' => '[e-mail]'),array('email' => '[e-mail]'),'reminders' => array(
    'useDefault' => FALSE,'overrides' => array(
      array('method' => 'email','minutes' => 24 * 60),array('method' => 'popup','minutes' => 10),));

$events = $service->events->insert('primary',$event);
printf('Event created: %s',$events->htmlLink);

使用PHP client library.

// Refer to the PHP quickstart on how to setup the environment:
// https://developers.google.com/google-apps/calendar/quickstart/PHP
// Change the scope to Google_Service_Calendar::CALENDAR and delete any stored
// credentials.

$event = new Google_Service_Calendar_Event(array(
  'summary' => 'Google I/O 2015','location' => '800 Howard St.,San Francisco,CA 94103','description' => 'A chance to hear more about Google\'s developer products.','start' => array(
    'dateTime' => '2015-05-28T09:00:00-07:00','timeZone' => 'America/Los_Angeles','end' => array(
    'dateTime' => '2015-05-28T17:00:00-07:00','recurrence' => array(
    'RRULE:FREQ=DAILY;COUNT=2'
  ),'attendees' => array(
    array('email' => '[e-mail]'),array('email' => '[e-mail]'),));

$calendarId = 'primary';
$event = $service->events->insert($calendarId,$event);
printf('Event created: %s\n',$event->htmlLink);

有关详细信息,请查看此处的官方文档Events: insert