Piwik\Plugins\VisitsSummary\API::get PHP Method

    public function get($idSite, $period, $date, $segment = false, $columns = false)
    {
        Piwik::checkUserHasViewAccess($idSite);
        $archive = Archive::build($idSite, $period, $date, $segment);
        $requestedColumns = Piwik::getArrayFromApiParameter($columns);
        $report = ReportsProvider::factory("VisitsSummary", "get");
        $columns = $report->getMetricsRequiredForReport($this->getCoreColumns($period), $requestedColumns);
        $dataTable = $archive->getDataTableFromNumeric($columns);
        if (!empty($requestedColumns)) {
            $columnsToShow = $requestedColumns ?: $report->getAllMetrics();
            $dataTable->queueFilter('ColumnDelete', array($columnsToRemove = array(), $columnsToShow));
        }
        return $dataTable;
    }