<?php
use Microsoft\Graph\GraphServiceClient;
use Microsoft\Graph\Generated\Users\Item\ContactFolders\Item\Contacts\Delta\DeltaRequestBuilderGetRequestConfiguration;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestConfiguration = new DeltaRequestBuilderGetRequestConfiguration();
$headers = [
'Prefer' => 'odata.maxpagesize=2',
];
$requestConfiguration->headers = $headers;
$queryParameters = DeltaRequestBuilderGetRequestConfiguration::createQueryParameters();
$queryParameters->select = ["displayName"];
$requestConfiguration->queryParameters = $queryParameters;
$result = $graphServiceClient->me()->contactFolders()->byContactFolderId('contactFolder-id')->contacts()->delta()->get($requestConfiguration)->wait();