如何访问谷歌分析数据

我的目标是在我的网站的标题上显示谷歌分析数据。这就是我到目前为止所拥有的一切（它来自googleApiPhPClient/examples/analytics：

require_once 'library/GoogleApiPhpClient/apiClient.php';
$client = new apiClient();
$client->setApplicationName("Google Analytics PHP Starter Application");
// Visit https://code.google.com/apis/console?api=analytics to generate your
// client id, client secret, and to register your redirect uri.
 $client->setClientId('aaa');
 $client->setClientSecret('bbb_gK');
 $client->setRedirectUri('ccc');
 $client->setDeveloperKey('dd');
require_once ('contrib/apiAnalyticsService.php');
$service = new apiAnalyticsService($client);
if (isset($_GET['logout'])) {
  unset($_SESSION['token']);
}
if (isset($_GET['code'])) {
  $client->authenticate();
  $_SESSION['token'] = $client->getAccessToken();
  $redirect = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
  header('Location: ' . filter_var($redirect, FILTER_SANITIZE_URL));
}
if (isset($_SESSION['token'])) {
  $client->setAccessToken($_SESSION['token']);
}
if ($client->getAccessToken()) {
  $props = $service->management_webproperties->listManagementWebproperties("~all");
  print "<h1>Web Properties</h1><pre>" . print_r($props, true) . "</pre>";
  $accounts = $service->management_accounts->listManagementAccounts();
  print "<h1>Accounts</h1><pre>" . print_r($accounts, true) . "</pre>";
  $segments = $service->management_segments->listManagementSegments();
  print "<h1>Segments</h1><pre>" . print_r($segments, true) . "</pre>";
  $goals = $service->management_goals->listManagementGoals("~all", "~all", "~all");
  print "<h1>Segments</h1><pre>" . print_r($goals, true) . "</pre>";
  $_SESSION['token'] = $client->getAccessToken();
} else {
  $authUrl = $client->createAuthUrl();
  print "<a class='login' href='$authUrl'>Connect Me!</a>";
}

但这只会删除"连接我"链接。无论如何，在获取分析数据方面是否有些正确？