<?php
use Microsoft\Graph\Beta\GraphServiceClient;
use Microsoft\Graph\Beta\Generated\Policies\FeatureRolloutPolicies\Item\FeatureRolloutPolicyItemRequestBuilderGetRequestConfiguration;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestConfiguration = new FeatureRolloutPolicyItemRequestBuilderGetRequestConfiguration();
$queryParameters = FeatureRolloutPolicyItemRequestBuilderGetRequestConfiguration::createQueryParameters();
$queryParameters->expand = ["appliesTo"];
$requestConfiguration->queryParameters = $queryParameters;
$result = $graphServiceClient->policies()->featureRolloutPolicies()->byFeatureRolloutPolicyId('featureRolloutPolicy-id')->get($requestConfiguration)->wait();