title: Extract Meta itemprop="price" content
body: <p>A given URL has code :- </p>
  
  <pre><code>  &lt;meta itemprop="price" content="12.00" /&gt;
  </code></pre>
  
  <p>I want to extract 12 to a new variable, I have no idea from where to begin because here we cannot use Tags PHP function which is used to extract normal meta tags!</p>