title: Php reading xml in post request
body: <p>So, I have perform two steps</p>
  
  <p>a) Create a some random xml file in one of the php file. 
  b) Parse the same xml file in second file.</p>
  
  <p>Key points are that 
  php file in a) will issue a post request to php file b) with only xml as its request. </p>
  
  <p>file b) will have to read the xml file using SImpleXml. </p>
  
  <p>I am trying to do something for this <a href="http://blog.superfeedr.com/API/pubsubhubbub/getting-started-with-pubsubhubbub/" rel="nofollow noreferrer">http://blog.superfeedr.com/API/pubsubhubbub/getting-started-with-pubsubhubbub/</a>. </p>
  
  <p>I my server will be receiving notifications in form of xml from the the superfeeder. The notifications will be xml file in the request. </p>
  
  <p>I am doing step a) just to confirm that my part b) is correct. </p>
  
  <p>How to do this in PHP.
  I tried all the $_REQUEST, $GLOBALS variable. But, not sure whats the way! </p>