Site::getFolder

static function getFolder(int $folderId, string $accessLevel = Rights::ACCESS_TYPES['read']): ?array
{
	$folder = Folder::getList([
		'filter' => [
			'ID' => $folderId
		]
	])->fetch();

	if ($folder)
	{
		if (!Rights::hasAccessForSite($folder['SITE_ID'], $accessLevel))
		{
			return null;
		}
	}

	return is_array($folder) ? $folder : null;
}