title: How to save XML using PHP
body: <p>Anyone know how I can create and save XML using PHP? I need something like this:</p>
  
  <pre><code>&lt;jukebox&gt;
    &lt;track source="" artist="" album="" title="" /&gt;
    &lt;track source="" artist="" album="" title="" /&gt;
    &lt;track source="" artist="" album="" title="" /&gt;
    &lt;track source="" artist="" album="" title="" /&gt;
  &lt;/jukebox&gt;
  </code></pre>