<?php require_once '../../csrest_lists.php'; $auth = array('access_token' => 'your access token', 'refresh_token' => 'your refresh token'); $wrap = new CS_REST_Lists('List ID', $auth); $result = $wrap->get_segments(); echo "Result of GET /api/v3.1/lists/{ID}/segments\n<br />"; if ($result->was_successful()) { echo "Got custom fields\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>';