title: How to retrieve Request Payload
body: <p>I'm using <strong>PHP</strong>, <strong>ExtJS</strong> and <strong>ajax store</strong>. </p>
  
  <p>It sends data (on create, update, destroy) not in POST or GET. In the <strong>Chrome Console</strong> I see my outgoing params as JSON in the "<strong>Request Payload</strong>" field. <strong>$_POST</strong>  and <strong>$_GET</strong> are empty.</p>
  
  <p>How to retrieve it in PHP?</p>