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<?php
declare(strict_types=1);
class MemcachedCache implements CacheInterface
{
private Logger $logger;
private \Memcached $conn;
public function __construct(
Logger $logger,
string $host,
int $port
) {
$this->logger = $logger;
$this->conn = new \Memcached();
// This call does not actually connect to server yet
if (!$this->conn->addServer($host, $port)) {
throw new \Exception('Unable to add memcached server');
}
}
public function get(string $key, $default = null)
{
$value = $this->conn->get($key);
if ($value === false) {
return $default;
}
return $value;
}
public function set(string $key, $value, $ttl = null): void
{
$expiration = $ttl === null ? 0 : time() + $ttl;
$result = $this->conn->set($key, $value, $expiration);
if ($result === false) {
$this->logger->warning('Failed to store an item in memcached', [
'key' => $key,
'code' => $this->conn->getLastErrorCode(),
'message' => $this->conn->getLastErrorMessage(),
'number' => $this->conn->getLastErrorErrno(),
]);
// Intentionally not throwing an exception
}
}
public function delete(string $key): void
{
$this->conn->delete($key);
}
public function clear(): void
{
$this->conn->flush();
}
public function prune(): void
{
// memcached manages pruning on its own
}
}
|
