Installing and configuring ZMQ:The following exemples is based on Debian Linux but it should work in other OS.First:Installing 0MQ:Go to http://zeromq.org/area:download and choose a package according your OS, in my case I've choosedPOSIX tarball Stable Release 4.0.4. ~$ tar -xvf zeromq-4.0.4.tar ~$ cd zeromq-4.0.4 ~$ ./configure ~$ make ~$ sudo make install Ok, we just have installed ZMQ now need install zmq php binding...Make sure you having php-dev and php pear installed. If no: ~$ sudo apt-get install php5-dev php-pear ~$ sudo pecl install zmq-betaOk, we have now ZMQ and php binding (ext-php) installed but we should add "extension=zmq.so" (Or extension=php_zmq.dll on windows) to php.ini:In my case: ~$ sudo nano /etc/php5/apache2/php.ini**NOTE:** If PHP version is 5.4.x you will need to add a zmq.ini file in /etc/php5/conf.d and put "extension=zmq.so": ~$ sudo nano /etc/php5/conf.d/20-zmq.iniReloadind HTTP server (in my case apache): ~$ sudo service apache2 reload