OrderEdit::getUserName

static function getUserName($userId, $siteId = "")
{
	if(intval($userId) <= 0)
		return Loc::getMessage("SALE_ORDEREDIT_NAME_NULL");

	static $userNames = array();

	if(!isset($userNames[$userId]))
	{
		$res = UserTable::getById($userId);

		if($buyer = $res->fetch())
		{
			$userNames[$userId] = CUser::FormatName(
				CSite::GetNameFormat(
					null,
					$siteId
				),
				$buyer,
				true,
				false
			);
		}
	}

	return $userNames[$userId];
}