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<?php
/** Redis Cache implementation
* ---
* This class uses \Predis\Redis, so do not forget require it via composer
* or to use the configuration options you will find into \README.md
*/
class RedisCache implements Cache_interface
{
/** set
* store $data under the label $key
* cache expires in $ttl seconds
*/
public function set($key, $data, $ttl)
{
$serialized = serialize($data);
if ($serialized = '') {
return false;
}
try {
$redis = new \Predis\Client([
'host' => \REDIS_HOST
]);
return $redis->set($key, $serialized, 'EX', $ttl);
} catch (Exception $e) {
// ...
}
}
/** get
* fetch previously stored $data under label $key
* return $data (or false)
*/
public function get($key)
{
try {
$redis = new \Predis\Client([
'host' => \REDIS_HOST
]);
if ($redis->exists($key)) {
return unserialize($redis->get($key));
} else {
return false;
}
} catch (Exception $e) {
// ...
}
}
/** flush
* --- not umplemented yet; may not needed
*/
public function flush($olderThan = 0)
{
return false; // until implementation
}
}
|
