Piwik\Plugins\VisitTime\Reports\GetByDayOfWeek::getDateRangeForFooterMessage PHP Method

    private function getDateRangeForFooterMessage()
    {
        // get query params
        $idSite = Common::getRequestVar('idSite', false);
        $date = Common::getRequestVar('date', false);
        $period = Common::getRequestVar('period', false);
        // create a period instance
        try {
            $oPeriod = Period\Factory::makePeriodFromQueryParams(Site::getTimezoneFor($idSite), $period, $date);
        } catch (\Exception $ex) {
            return '';
            // if query params are incorrect, forget about the footer message
        }
        // set the footer message using the period start & end date
        $start = $oPeriod->getDateStart()->toString();
        $end = $oPeriod->getDateEnd()->toString();
        if ($start == $end) {
            $dateRange = $start;
        } else {
            $dateRange = $start . " – " . $end;
        }
        return $dateRange;
    }