title: Convert youtube video to mp3 using Quick MP3 API
body: <p>I need convert youtube video to mp3 using Quick MP3 API.</p>
  
  <p><a href="http://www.quick-mp3.com/api/v1/docs/" rel="nofollow">http://www.quick-mp3.com/api/v1/docs/</a></p>
  
  <p>my code example is :</p>
  
  <pre><code>&lt;?php
  $url="http://www.youtube.com/watch?v=qpgTC9MDx1o";
  // i need to fetch video informations and get mp3 download link
  ?&gt;
  </code></pre>
  
  <p>Thank you.</p>