How can I get rid of all JavaScript from an HTML page?

Question

I could use regex to get rid of the <script> tags in the HTML like this

$html = preg_replace('#<script(.*?)>(.*?)</script>#is','', $html);

So that works fine, but what about inline JavaScript? I figured out I could do it this way

$nodes = $dom->getElementsByTagName('*');
foreach($nodes as $node)
{
  if ($node->hasAttribute('onload')){
    $node->removeAttribute('onload');
  }
}

The issue with this is I'd have to find all the attributes, and keep making if statements. I've also seen libraries, but I want to keep things small. So is there any quick way? Also any nice lists with inline attributes if I have to keep doing what I'm doing?

Answer 1

我会说，不要重新发明轮子，使用http://htmlpurifier.org/之类的库来完成此任务。