I need a keyword density script solution for multiple phases
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/819166/what-is-keyword-density-and-how-to-create-a-script-in-php">What is Keyword Density and how to create a script in PHP ??</a>  </p>
</blockquote>



<p>Hi there</p>

<p>I need a function that return keyword density for multiple words for a given text/url like <a href="http://ranks.nl/cgi-bin/ranksnl/spider/spider.cgi?lang=" rel="nofollow">http://ranks.nl/cgi-bin/ranksnl/spider/spider.cgi?lang=</a> does.</p>

<p>Best regards</p>
