/**
* Returns the visitor ID of the most recent visit.
*
* @param int $idSite
* @param bool|string $segment
* @return string
*/
public function getMostRecentVisitorId($idSite, $segment = false)
{
Piwik::checkUserHasViewAccess($idSite);
$dataTable = $this->loadLastVisitorDetailsFromDatabase($idSite, $period = false, $date = false, $segment, $numVisitorsToFetch = 1, $visitorId = false, $minTimestamp = false);
if (0 >= $dataTable->getRowsCount()) {
return false;
}
$visitDetails = $dataTable->getFirstRow()->getColumns();
$visitor = new Visitor($visitDetails);
return $visitor->getVisitorId();
}