'your access token', 'refresh_token' => 'your refresh token'); $wrap = new CS_REST_Clients( 'ClientID to get Lists for', $auth); $email_address = 'your_email_address@example.com'; $result = $wrap->get_lists_for_email($email_address); echo "Result of /api/v3.1/clients/{id}/listsforemail\n
"; if($result->was_successful()) { echo "Got lists to which email address ".$email_address." is subscribed\n

";
    var_dump($result->response);
} else {
    echo 'Failed with code '.$result->http_status_code."\n
";
    var_dump($result->response);
}
echo '
';