<?php
use Microsoft\Graph\GraphServiceClient;
use Microsoft\Graph\Generated\Contacts\Delta\DeltaRequestBuilderGetRequestConfiguration;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestConfiguration = new DeltaRequestBuilderGetRequestConfiguration();
$queryParameters = DeltaRequestBuilderGetRequestConfiguration::createQueryParameters();
$queryParameters->select = ["displayName","jobTitle","mail"];
$requestConfiguration->queryParameters = $queryParameters;
$result = $graphServiceClient->contacts()->delta()->get($requestConfiguration)->wait();