title: How to Get url from the iframe using PHP
body: <p>How to get the youtube url from the below link?</p>
  
  <pre><code>&lt;iframe title="YouTube video player" width="640" height="390" 
   src="http://www.youtube.com/embed/VvJ037b_kLs" 
  frameborder="0" allowfullscreen&gt;&lt;/iframe&gt; 
  </code></pre>