Push Integration Example issue
Hey. First of all thank you for this library. 

I've tried to implement the Basic Push Integration example and i've pretty much copied the code and put it in an existing application. The server is up and running, the browser is connected to the server but when I try to execute the 

 $socket = $context->getSocket(ZMQ::SOCKET_PUSH, 'my pusher');
 $socket->connect("tcp://127.0.0.1:5555");

the second line of code in particular the page does no longer load and i get a generic browser error: This site can’t be reached The connection was reset. (Chrome)

I've been trying to find a solution or at least an error message somewhere but I've had no luck.