title: difference between Nginx and node.js
body: <p><code>Nginx</code> uses an <code>asynchronous event-driven</code> approach and <code>node.js</code> also uses asynchronous event-driven approach. i know Nginx is a web server while node.js is programming language.  </p>
  
  <ol>
  <li>what is the key factors that make <code>Nginx</code> different than <code>node.js</code>?</li>
  <li>if we run <code>php(or any web language)</code> on <code>Nginx</code> then how the combo(<code>PHP(or any web language)+Nginx</code>) works as <code>asynchronous event-driven</code> different than <code>node.js</code>?</li>
  </ol>