Ok the first thing you need to do is grab the Email address on developer console for your app that was created along with the app.
1046123799103-nk421gjc2v8mlr2qnmmqaak04ntb1dbp@developer.gserviceaccount.com
Login to your GA go to the admin section for the account you want the Service account to access. You need to give that email account Access at the account level just give them Read and analyze.
<?php
session_start();
require_once 'Google/Client.php';
require_once 'Google/Service/Analytics.php';
// Values from APIs console for your app
$client_id = 'Client ID';
$service_account_name = 'Email address';
$key_file_location = 'The file you downloaded';
$client = new Google_Client();
$client->setApplicationName("Client_Library_Examples");
if (isset($_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/analytics.readonly'),
$key
);
$client->setAssertionCredentials($cred);
if($client->getAuth()->isAccessTokenExpired()) {
$client->getAuth()->refreshTokenWithAssertion($cred);
}
$_SESSION['service_token'] = $client->getAccessToken();
$service = new Google_Service_Analytics($client);
$accounts = $service->management_accountSummaries->listManagementAccountSummaries();
foreach ($accounts->getItems() as $item) {
echo "Account: ",$item['name'], " " , $item['id'], "<br /> \n";
foreach($item->getWebProperties() as $wp) {
echo ' WebProperty: ' ,$wp['name'], " " , $wp['id'], "<br /> \n";
$views = $wp->getProfiles();
if (!is_null($views)) {
foreach($wp->getProfiles() as $view) {
// echo ' View: ' ,$view['name'], " " , $view['id'], "<br /> \n";
}
}
}
}