<?php
use Aspose\Words\WordsApi;
use Aspose\Words\Model\Requests\{GetSectionsOnlineRequest};

$clientId = '####-####-####-####-####';
$secret = '##################';
$wordsApi = new WordsApi($clientId, $secret);
$requestDocument = "Sample.docx";
$request = new GetSectionsOnlineRequest(
    $requestDocument, NULL, NULL, NULL);
$wordsApi->getSectionsOnline($request);