/**
* Memcached constructor.
* @param Cache $cache
* @param string $host
* @param int $port
* @throws EngineException
*/
public function __construct(Cache $cache, string $host, int $port = 11211)
{
// Check if we have Memcached PECL
if (!extension_loaded("memcached")) {
throw EngineException::prerequisite(__CLASS__, 'Required extension/PECL "memcached" is not installed');
}
$this->cache = $cache;
$this->memcached = new \Memcached();
// \Memcached::OPT_BINARY_PROTOCOL is necessary for increment/decrement methods to work as expected
$this->memcached->setOption(\Memcached::OPT_BINARY_PROTOCOL, true);
if (!$this->memcached->addServer($host, $port)) {
throw EngineException::connectionError(__CLASS__, sprintf('Failed to add "%1$s:%2$d" as server', $host, $port));
}
// Save host and port
$this->host = $host;
$this->port = $port;
// Connected?
if (!$this->isConnected()) {
throw EngineException::connectionError(__CLASS__, sprintf('Failed to connect with MEMCACHED server on "%1$s:%2$d"', $host, $port));
}
}
