Get a text block from a url
<p>forexample, I have this url:</p>

<p><code>http://adstorage.jamba.net/storage/view/325/0/fa/Fairytale.mp3</code></p>

<p>How can I use PHP code so that it returns <code>Fairytale</code>. all the things before <code>Fairytale</code> and after that <code>.mp3</code> should be removed.</p>

<p>the idetifier are <code>/</code> and <code>.mp3</code> only the <code>file name</code> should be returned.</p>
