MODE_DONTWAIT replaces deprecated MODE_NOBLOCK
MODE_DONTWAIT replaces deprecated MODE_NOBLOCK

http://www.php.net/manual/en/class.zmq.php#zmq.constants.mode-dontwait

MODE_NOBLOCK is now a deprecated constant.
Orvid/php-zmq,Orvid/php-zmq,Orvid/php-zmq