<?php

require "rtapi.class.php";
$ga_profile_id = "xxxxxx";
//your google analytics account ID
$metrics = array("activeUsers");
$dimensions = array("userType");
//"userType","medium","city"
$rt = new rtapi("*****@*****.**", "oauthkeyfile.p12");
$rt->requestReportData($ga_profile_id, $dimensions, $metrics);
$result = $rt->getResults();
/*
echo '<pre>';
print_r($result[0]);
echo '</pre>';
*/
if ($result == NULl) {
    $useronline = 0;
    $pluriel = "";
} else {
    $useronline = $result[0]->getactiveUsers();
    if ($useronline > 1) {
        $pluriel = "s";
    }
}
echo $useronline . " Visiteur" . $pluriel . " en ligne";