title: How do I retrieve information from file_get_contents(php://input)?
body: <p>I am trying to fix a callbackurl and in the old system I could simply use a <code>$_POST['order_id']</code> when trying to retrieve the data. Unfortunately that no longer seems to be possible.</p>
  
  <p>The new system uses this line of code:</p>
  
  <pre><code>$request_body = file_get_contents("php://input");
  </code></pre>
  
  <p>According to the technical data sheet the <code>order_id</code> is now simply called <code>id</code>, but how do I use <code>$request_body</code> to retrieve it? Something like <code>$request_body['id']</code> ?</p>