title: Why would you merge $_GET and $_POST in PHP?
body: <p>I just saw this code while studying the wordpress source code (PHP),  You can see they mergre/turn all  get and post values into 1 request array.  </p>
  
  <p>Now as I know it, $_GET and $_POST are already available by calling $_REQUEST <strong>WITHOUT</strong> using the array_merge() function, so any ideas why they would do this?</p>
  
  <pre><code>$_REQUEST = array_merge($_GET, $_POST);
  </code></pre>