title: Twig Symfony2 get Request variable
body: <p>I know I can do this:</p>
  
  <pre><code>app.request.get('name')
  </code></pre>
  
  <p>...but how do I do this?</p>
  
  <pre><code>app.request.get(twig_var_name)
  </code></pre>
  
  <p>I've tried every obvious solution {{}} () etc.</p>
  
  <p>Is it possible?</p>