Fuser::getFilterFromCookie

static function getFilterFromCookie(?string $cookie): ?array
{
	if ($cookie === null || $cookie === '')
	{
		return null;
	}

	$filter = [];
	if (static::isEncodeCookie())
	{
		$filter = [
			'=CODE' => $cookie,
		];
	}
	else
	{
		$cookie = (int)$cookie;
		if ($cookie > 0)
		{
			$filter = [
				'=ID' => $cookie,
			];
		}
	}

	return (!empty($filter) ? $filter : null);
}