(PECL zmq >= 0.5.0)
ZMQPoll::remove — Remove item from poll set
Remove item from the poll set. The item parameter can be ZMQSocket object,
a stream resource or the id returned from ZMQPoll::add() method.
itemThe ZMQSocket object, PHP stream or string id of the item.
Returns true if the item was removed and false if the object with given id does not exist in the poll set.