con't no find session id
i use memcache as session storage media.

$memcache = new Memcache;
$memcache->connect('192.168.1.111', 11211);

$session = new SessionProvider(
        new Index
      , new Handler\MemcacheSessionHandler($memcache)
    );

 $server = IoServer::factory(new WsServer($session),8080);

echo $this->from->Session->getName()." getName\n";
this result is PHPSESSID.
but can't getId( ).

do i have to use setId( string $id ) method??
