public function getMostRecentVisitorId($idSite, $segment = false)
    {
        Piwik::checkUserHasViewAccess($idSite);

        // for faster performance search for a visitor within the last 7 days first
        $minTimestamp = Date::now()->subDay(7)->getTimestamp();

        $dataTable = $this->loadLastVisitsDetailsFromDatabase(
            $idSite, $period = false, $date = false, $segment, $offset = 0, $limit = 1, $minTimestamp
        );

        if (0 >= $dataTable->getRowsCount()) {
            $minTimestamp = Date::now()->subYear(1)->getTimestamp();
            // no visitor found in last 7 days, look further back for up to 1 year. This query will be slower
            $dataTable = $this->loadLastVisitsDetailsFromDatabase(
                $idSite, $period = false, $date = false, $segment, $offset = 0, $limit = 1, $minTimestamp
            );
        }

        if (0 >= $dataTable->getRowsCount()) {
            // no visitor found in last year, look over all logs. This query might be quite slow
            $dataTable = $this->loadLastVisitsDetailsFromDatabase(
                $idSite, $period = false, $date = false, $segment, $offset = 0, $limit = 1
            );
        }

        if (0 >= $dataTable->getRowsCount()) {
            return false;
        }

        $visitorFactory = new VisitorFactory();
        $visitDetails   = $dataTable->getFirstRow()->getColumns();
        $visitor        = $visitorFactory->create($visitDetails);

        return $visitor->getVisitorId();
    }
public function getMostRecentVisitorId($idSite, $segment = false)
    {
        Piwik::checkUserHasViewAccess($idSite);

        // for faster performance search for a visitor within the last 7 days first
        $minTimestamp = Date::now()->subDay(7)->getTimestamp();

        $dataTable = $this->loadLastVisitsDetailsFromDatabase(
            $idSite, $period = false, $date = false, $segment, $offset = 0, $limit = 1, $minTimestamp
        );

        if (0 >= $dataTable->getRowsCount()) {
            $minTimestamp = Date::now()->subYear(1)->getTimestamp();
            // no visitor found in last 7 days, look further back for up to 1 year. This query will be slower
            $dataTable = $this->loadLastVisitsDetailsFromDatabase(
                $idSite, $period = false, $date = false, $segment, $offset = 0, $limit = 1, $minTimestamp
            );
        }

        if (0 >= $dataTable->getRowsCount()) {
            // no visitor found in last year, look over all logs. This query might be quite slow
            $dataTable = $this->loadLastVisitsDetailsFromDatabase(
                $idSite, $period = false, $date = false, $segment, $offset = 0, $limit = 1
            );
        }

        if (0 >= $dataTable->getRowsCount()) {
            return false;
        }

        $visitorFactory = new VisitorFactory();
        $visitDetails   = $dataTable->getFirstRow()->getColumns();
        $visitor        = $visitorFactory->create($visitDetails);

        return $visitor->getVisitorId();
    }
public function getMostRecentVisitorId ( $ idSite , $ segment = false ) { Piwik :: checkUserHasViewAccess ( $ idSite ) ; // for faster performance search for a visitor within the last 7 days first $ minTimestamp = Date :: now ( ) -> subDay ( 7 ) -> getTimestamp ( ) ; $ dataTable = $ this -> loadLastVisitsDetailsFromDatabase ( $ idSite , $ period = false , $ date = false , $ segment , $ offset = 0 , $ limit = 1 , $ minTimestamp ) ; if ( 0 >= $ dataTable -> getRowsCount ( ) ) { $ minTimestamp = Date :: now ( ) -> subYear ( 1 ) -> getTimestamp ( ) ; // no visitor found in last 7 days, look further back for up to 1 year. This query will be slower $ dataTable = $ this -> loadLastVisitsDetailsFromDatabase ( $ idSite , $ period = false , $ date = false , $ segment , $ offset = 0 , $ limit = 1 , $ minTimestamp ) ; } if ( 0 >= $ dataTable -> getRowsCount ( ) ) { // no visitor found in last year, look over all logs. This query might be quite slow $ dataTable = $ this -> loadLastVisitsDetailsFromDatabase ( $ idSite , $ period = false , $ date = false , $ segment , $ offset = 0 , $ limit = 1 ) ; } if ( 0 >= $ dataTable -> getRowsCount ( ) ) { return false ; } $ visitorFactory = new VisitorFactory ( ) ; $ visitDetails = $ dataTable -> getFirstRow ( ) -> getColumns ( ) ; $ visitor = $ visitorFactory -> create ( $ visitDetails ) ; return $ visitor -> getVisitorId ( ) ; }
Returns the visitor ID of the most recent visit.

@param int $idSite
@param bool|string $segment
@return string
Returns the visitor ID of the most recent visit .