Piwik\Site::getId PHP Method

    public function getId()
    {
        return $this->id;
    }

 public static function getArchiveIdAndVisits(Site $site, Period $period, Segment $segment, $minDatetimeArchiveProcessedUTC, $requestedPlugin)
 {
     $dateStart = $period->getDateStart();
     $bindSQL = array($site->getId(), $dateStart->toString('Y-m-d'), $period->getDateEnd()->toString('Y-m-d'), $period->getId());
     $timeStampWhere = '';
     if ($minDatetimeArchiveProcessedUTC) {
         $timeStampWhere = " AND ts_archived >= ? ";
         $bindSQL[] = Date::factory($minDatetimeArchiveProcessedUTC)->getDatetime();
     }
     $pluginOrVisitsSummary = array("VisitsSummary", $requestedPlugin);
     $pluginOrVisitsSummary = array_unique($pluginOrVisitsSummary);
     $sqlWhereArchiveName = self::getNameCondition($pluginOrVisitsSummary, $segment);
     $sqlQuery = "\tSELECT idarchive, value, name, date1 as startDate\n\t\t\t\t\t\tFROM " . ArchiveTableCreator::getNumericTable($dateStart) . "``\n\t\t\t\t\t\tWHERE idsite = ?\n\t\t\t\t\t\t\tAND date1 = ?\n\t\t\t\t\t\t\tAND date2 = ?\n\t\t\t\t\t\t\tAND period = ?\n\t\t\t\t\t\t\tAND ( ({$sqlWhereArchiveName})\n\t\t\t\t\t\t\t\t  OR name = '" . self::NB_VISITS_RECORD_LOOKED_UP . "'\n\t\t\t\t\t\t\t\t  OR name = '" . self::NB_VISITS_CONVERTED_RECORD_LOOKED_UP . "')\n\t\t\t\t\t\t\t{$timeStampWhere}\n\t\t\t\t\t\tORDER BY idarchive DESC";
     $results = Db::fetchAll($sqlQuery, $bindSQL);
     if (empty($results)) {
         return false;
     }
     $idArchive = self::getMostRecentIdArchiveFromResults($segment, $requestedPlugin, $results);
     $idArchiveVisitsSummary = self::getMostRecentIdArchiveFromResults($segment, "VisitsSummary", $results);
     list($visits, $visitsConverted) = self::getVisitsMetricsFromResults($idArchive, $idArchiveVisitsSummary, $results);
     if ($visits === false && $idArchive === false) {
         return false;
     }
     return array($idArchive, $visits, $visitsConverted);
 }