usergroupservice.php

См. документацию.

<?php
 
namespace Bitrix\Calendar\Integration\SocialNetwork;
 
use Bitrix\Main\Loader;
use Bitrix\Socialnetwork\Internals\Registry\UserRegistry;
 
final class UserGroupService
{
    private static ?self $instance;
 
    public static function getInstance(): self
    {
        self::$instance ??= new self();
 
        return self::$instance;
    }

    public function getUserGroups(int $userId): array
    {
        if (!$this->isAvailable())
        {
            return [];
        }
 
        return UserRegistry::getInstance($userId)->getUserGroups();
    }
 
    private function isAvailable(): bool
    {
        return Loader::includeModule('socialnetwork');
    }
 
    private function __construct()
    {
    }
}