<?php
use Microsoft\Graph\Beta\GraphServiceClient;
use Microsoft\Graph\Beta\Generated\IdentityGovernance\EntitlementManagement\AccessPackageResourceEnvironments\AccessPackageResourceEnvironmentsRequestBuilderGetRequestConfiguration;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestConfiguration = new AccessPackageResourceEnvironmentsRequestBuilderGetRequestConfiguration();
$queryParameters = AccessPackageResourceEnvironmentsRequestBuilderGetRequestConfiguration::createQueryParameters();
$queryParameters->filter = "originSystem eq 'SharePointOnline'";
$requestConfiguration->queryParameters = $queryParameters;
$result = $graphServiceClient->identityGovernance()->entitlementManagement()->accessPackageResourceEnvironments()->get($requestConfiguration)->wait();