// Méthode Auth Header

    $h = curl_init('https://oa.dnc.global/userinfo');
    curl_setopt($h, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($h, CURLOPT_TIMEOUT, 10);
    curl_setopt($h, CURLOPT_HTTPHEADER, array('Authorization: Bearer ' . $access_token));

    $res = curl_exec($h);
    if (!$res)
        exit(curl_error($h));

    curl_close($h);
    $res = json_decode($res, true);

    echo "UserInfo Response:\n";
    print_r($res);