PHP Redis

php-redis-cache-statistics.php

<?php
while($row = $result->fetch_assoc()) {
    STReservationHelper::peopleSumReducer($summary[STReservationHelper::CACHE_PEOPLE_SUM], $row);
    // Other reducers ...
}

// set values
$redis->incrby(STReservationHelper::CACHE_PEOPLE_SUM, $summary[STReservationHelper::CACHE_PEOPLE_SUM]);

// set other summaries
// set last update
$redis->set(STReservationHelper::CACHE_LAST_UPDATE_TIMESTAMP, $endDateTime->getTimestamp());

php-redis-cache-x-recent-records.php

<?php
// add to cache
foreach($reservations as $reservation) {
    $datetime = new DateTime($reservation[CC::CDATE]);
    $redis->zadd($cacheKey, $datetime->getTimestamp(), json_encode($reservation));
}

// remove until MAX_PUBLIOC_RESERVATIONS
$cachedReservations = $redis->zrevrangebyscore($cacheKey, 4102416000, 0, array('limit'=>array(self::CACHE_MAX_PUBLIC_RESERVATIONS, 1)));
if(count($cachedReservations) > 0) {
    $reservation = json_decode($cachedReservations[0], true);
    $startDateTime = new DateTime($reservation[CC::CDATE]);
    $redis->zremrangebyscore($cacheKey, 0, $startDateTime->getTimestamp());
}