Install zeromq on Yosemite with php PECL
brew install zeromq Building php extension via PEAR sudo pecl install zmq-beta You will have to add the extension to your php.ini with this line: extension=zmq.so Find the php.ini File Location from the Command Line php -i | grep php.ini You can, of course, always put a new php file in your web server root directory and add in the following: phpinfo();