function __construct($ttl)
{
parent::__construct($ttl);
if (!extension_loaded('memcache')) {
throw new Exception('Memcached extension is missing');
}
if (!defined('MEMCACHE_SERVERS')) {
throw new Exception('MEMCACHE_SERVERS must be defined');
}
$servers = explode(',', MEMCACHE_SERVERS);
$this->memcache = new Memcache();
foreach ($servers as $S) {
@(list($host, $port) = explode(':', $S));
if (strpos($host, '/') !== false) {
// Use port '0' for unix sockets
$port = 0;
} else {
$port = $port ?: ini_get('memcache.default_port') ?: 11211;
}
$this->servers[] = array(trim($host), (int) trim($port));
// FIXME: Crash or warn if invalid $host or $port
}
}
/**
* Destroy the session.
*
* @return NULL
*/
public function destroy()
{
$this->ensureSessionIsStarted();
$this->backend->destroy();
}