这个正则表达式的负面断言是什么？

Question

I'm trying to match the following:

• This:

  HIGH SCHOOL WRESTLING NOTEBOOK: A surge at Delaware Valley, team rankings shakeup and more.
  

• With This :

  <pre>
    <div class="sum">
      <div class="photo_gutter">
        <div class="photo">
          <a href="http://media.lehighvalleylive.com/brad-wilson/photo/jaryd-flank-b30e919c41bc86b2.jpg">
            <img src="http://media.lehighvalleylive.com/brad-wilson/photo/jaryd-flank-b30e919c41bc86b2.jpg" alt="" title="" width="200" border="0"/>
          </a>
        </div>
      </div>
    </div>
    HIGH SCHOOL WRESTLING NOTEBOOK: A surge at Delaware Valley, team rankings shakeup and more.
  </pre>
  

What I have so far is /<.*>\s/i, but I need the opposite of that. Can someone help me?

Answer 1

Do not use regex to parse HTML, use PHP Domdocument instead.