<?php
use Microsoft\Graph\GraphServiceClient;
use Microsoft\Graph\Generated\Models\Group;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new Group();
$additionalData = [
'members@odata.bind' => [
'https://graph.microsoft.com/v1.0/directoryObjects/{id}', 'https://graph.microsoft.com/v1.0/directoryObjects/{id}', 'https://graph.microsoft.com/v1.0/directoryObjects/{id}', ],
];
$requestBody->setAdditionalData($additionalData);
$result = $graphServiceClient->groups()->byGroupId('group-id')->patch($requestBody)->wait();