PHP Snippet PHP Connect to Google Real Time API and receive the activeVisitors on the site

google-real-time-php-api.php

<?php

//Google RealTime Connect

require_once '/ABSOLUTE/PATH/TO/GOOGLE-API-PHP/vendor/autoload.php';

$client = new Google_Client();
$client->setApplicationName("A_DESCRIPTIVE_NAME");
$client->setAuthConfig('/ABSOLUTE/PATH/TO/GOOGLE-API-PHP/AUTH-FILE.json');
$client->addScope('https://www.googleapis.com/auth/analytics.readonly');
$GA_VIEW_ID = 'ga:VIEW_ID';

$service = new Google_Service_Analytics($client);
try {
    $result = $service->data_realtime->get(
        $GA_VIEW_ID,
        'rt:activeVisitors'
    );
    $count = $result->totalsForAllResults['rt:activeVisitors'];
    echo $count;

} catch(Exception $e) {
    var_dump($e);
}