<?php require_once '../../csrest_clients.php'; $auth = array('access_token' => 'your access token', 'refresh_token' => 'your refresh token'); $wrap = new CS_REST_Clients('ClientID to get Lists for', $auth); $email_address = '*****@*****.**'; $result = $wrap->get_lists_for_email($email_address); echo "Result of /api/v3.1/clients/{id}/listsforemail\n<br />"; if ($result->was_successful()) { echo "Got lists to which email address " . $email_address . " is subscribed\n<br /><pre>"; var_dump($result->response); } else { echo 'Failed with code ' . $result->http_status_code . "\n<br /><pre>"; var_dump($result->response); } echo '</pre>';