title: How to create GEXF from PHP?
body: <p>I need to automatically create GEXF (<a href="http://gexf.net" rel="nofollow noreferrer">http://gexf.net</a>) XML files from an array of nodes in PHP.</p>
  
  <p>I've Googled the topic but was unable to find anything useful.</p>
  
  <p>How would I do this?</p>