title: .htaccess SetEnv set PHP $_SERVER variable to nested array
body: <p>I am using PHP 5.6.22 and Apache 2.4.18. I have a <code>$_SERVER</code> variable that I want to set to be a nested array.</p>
  
  <p>To clarify, at the beginning of my PHP script, I want <code>$_SERVER['key']</code> to be set to a two-level array as shown below:</p>
  
  <pre><code>$_SERVER['key'] = array('index' =&gt; array('sub_index' =&gt; 'some_value'))
  </code></pre>
  
  <p>Is this possible? Thanks in advance for your help.</p>