<?php
 
$ga_ua = 'UA-XXXXXXX-X'; // This is the ID from your GA snippet.
$client_id = 'your client id'; // From the API Console
$client_secret = 'your client secret'; // From the API Console
$redirect_url = 'http://yourdomain.com/ga-gdata.php'; // The address of this script
 
require_once 'path/to/google-api-php-client/src/apiClient.php';
 
session_start();
 
$client = new apiClient();
$client->setScopes('https://www.googleapis.com/auth/analytics.readonly');
$client->setApplicationName("GA Report");
$client->setClientId($client_id);
$client->setClientSecret($client_secret);
$client->setRedirectUri($redirect_url);
 
if (isset($_GET['logout'])) {
  unset($_SESSION['token']);
  header('Location: http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF']);
}
 
if (isset($_GET['code'])) {
  if (strval($_SESSION['state']) !== strval($_GET['state'])) {
    die("The session state ({$_SESSION['state']}) didn't match the state parameter ({$_GET['state']})");
  }
  $client->authenticate();
  $_SESSION['token'] = $client->getAccessToken();
  header('Location: http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF']);
}
 
if (isset($_SESSION['token'])) {
  $client->setAccessToken($_SESSION['token']);
}
 
if ($client->getAccessToken()) {
	$url = 'https://www.googleapis.com/analytics/v3/management/accounts/~all/webproperties/~all/profiles';
 
	$request = $client->getIo()->authenticatedRequest(new apiHttpRequest($url));
 
	if ($request->getResponseHttpCode() != 200) {
		throw new apiException("http code: " . $request->getResponseHttpCode() . ", response body: " . $request->getResponseBody());
	}
 
	$json = json_decode($request->getResponseBody(), true);
 
	foreach ($json['items'] as $item) {
		if ($item['webPropertyId'] == $ga_ua) {
			$web_property_id = $item['id'];
		}			
	}
 
	$yesterday = strtotime('-1 day');
	$two_weeks_ago = strtotime('-2 weeks', $yesterday);	
 
	$search_config = array(
		'ids' => 'ga:'.$web_property_id,
		'start-date' => date('Y-m-d', $two_weeks_ago),
		'end-date' => date('Y-m-d', $yesterday),
		'dimensions' => 'ga:year,ga:month,ga:day',
		'metrics' => 'ga:pageviews'
	);
 
	$url = 'https://www.googleapis.com/analytics/v3/data/ga?'.http_build_query($search_config);
 
	$request = $client->getIo()->authenticatedRequest(new apiHttpRequest($url));
 
	if ($request->getResponseHttpCode() != 200) {
		throw new apiException("http code: " . $request->getResponseHttpCode() . ", response body: " . $request->getResponseBody());
	}
 
	echo '<pre>';
	var_dump(json_decode($request->getResponseBody(), true));
 
	// The access token may have been updated lazily.
	$_SESSION['token'] = $client->getAccessToken();
} else {
	$state = mt_rand();
	$client->setState($state);
	$_SESSION['state'] = $state;
 
	$authUrl = $client->createAuthUrl();
	print "<a class='login' href='$authUrl'>Connect Me!</a>";
}