<?php
use Microsoft\Graph\Beta\GraphServiceClient;
use Microsoft\Graph\Beta\Generated\ServicePrincipals_with_app_id\ServicePrincipalsWithAppIdRequestBuilderGetRequestConfiguration;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestConfiguration = new ServicePrincipalsWithAppIdRequestBuilderGetRequestConfiguration();
$queryParameters = ServicePrincipalsWithAppIdRequestBuilderGetRequestConfiguration::createQueryParameters();
$queryParameters->select = ["id","appId","displayName","appRoles","publishedPermissionScopes","resourceSpecificApplicationPermissions"];
$requestConfiguration->queryParameters = $queryParameters;
$result = $graphServiceClient->servicePrincipalsWithAppId('{appId}', )->get($requestConfiguration)->wait();