Using ZMQ to establish direct connection to running IoServer
I've gone thru the docs about how to use ZMQ to connect a web app to a socket server over port 5555 (in the examples) as an in-between communication layer between client view, existing server side app, and socket server. But for my project I don't need the updating client-side piece, so I'd rather be able to create a connection with ZMQ directly to my IoServer which is on port 8000.

The code below ALMOST works:

```
$context = new ZMQContext();
$socket = $context->getSocket(ZMQ::SOCKET_PUSH);
$socket->connect('tcp://testserver.com:8000/');
$socket->send(json_encode(array('command' => 'test')));
```

But on the IoServer side, I'm echoing incoming connections and messages to a log file, and the log always returns a garbled "?" character for the message that got sent. Is this simply a character encoding issue of some sort? I've tried putting many different ZMQ constants in the params for "getSocket" and "$socket->send" but none of them seem to fix the issue.

Any ideas?
