I've set up an ejabberd install locally on my Windows box, where I also have Apache, PHP and MySQL. I've also confirmed that it works great using Digsby, and have kicked the tires a bit by creating some users, sending some messages, etc. All good.

However, PHP can't open a stream using stream_socket_client to port 5222. Even at its simplest level:

stream_socket_client("tcp://localhost:5222", $errno, $errstr, 30, STREAM_CLIENT_CONNECT);

Returns a timeout error. However, again, connecting with an IM client to localhost on port 5222 works fine.

Any ideas? I'm stuck!