/**
* Get number of unique beacons given an event and a set of dates
*
* @param string $token Event
* @param string $event Token
* @param array $dates Dates
*
* @return integer Number of hits
*/
public function getBeaconsUnique($token, $event, array $dates)
{
$keys = [];
foreach ($dates as $date) {
$keys[] = $this->generateEntryKey($token, $event, $date) . '_unique';
}
return (int) $this->redis->pfCount($keys);
}
