Preg Replace Question PHP
<p>I have a url, <a href="http://www.jdocy.com/click-42343-32422" rel="nofollow">http://www.jdocy.com/click-42343-32422</a></p>

<p>I want to replace the 42343 section of the url with php's preg_replace function.</p>

<p>How would I go about doing this?</p>
