title: Fatal error: Class 'ZMQContext' not found ( but it is installed and works on the terminal )
body: <p>I want to try the ZeroMQ, and I write two php file, service.php and client.php.
  I use the linux terminal to run service <code>php /web/test/service.php</code>,it's ok, terminal print a "waiting for client connecting...".</p>
  
  <p>but, I request my client.php through chrome explorer,error happened, I check my error.log,there is message "php fatal error: class 'ZMQContext' not found........"</p>
  
  <p>and I use command <code>php -m</code> to check my php extension, <code>zmq</code> is already in that list.</p>