echo $event->getEditLink()->href;

function add_gcal($title, $date, $desc){

$newIncludePath = array();
$newIncludePath[] = '../ZendGdata-1.8.4PL1/library';
$newIncludePath = implode($newIncludePath);
set_include_path($newIncludePath);

  // load classes
  require_once 'Zend/Loader.php';
  Zend_Loader::loadClass('Zend_Gdata');
  Zend_Loader::loadClass('Zend_Gdata_ClientLogin');
  Zend_Loader::loadClass('Zend_Gdata_Calendar');
  Zend_Loader::loadClass('Zend_Http_Client');

  // connect to service
  $gcal = Zend_Gdata_Calendar::AUTH_SERVICE_NAME;
  $user = "------@gmail.com";
  $pass = "------";
  $client = Zend_Gdata_ClientLogin::getHttpClient($user, $pass, $gcal);
  $gcal = new Zend_Gdata_Calendar($client);

  // construct event object
  // save to server
  try {
    $event = $gcal->newEventEntry();
    $event->title = $gcal->newTitle($title);
    $event->content = $gcal->newContent($desc);
    $when = $gcal->newWhen();
    $when->startTime = $date;
    $when->endTime = $date;
    $event->when = array($when);
    $gcal->insertEvent($event);

	echo $event->getEditLink()->href;

  } catch (Zend_Gdata_App_Exception $e) {
    echo "Error: Unable to add event to Google Calendar" . $e->getResponse();
  }

$newEvent->when = array($when);