title: Quick way to sanitize markdown in PHP
body: <p>I am looking for an easy and quick to install way to sanitize markdown in PHP.</p>
  
  <p>I don't need an ultimate robust solution (as answers I saw in other questions) just something simple filtering the most dangerous tags (for example filtering the script tag among other things).</p>
  
  <p>Is there such a thing that exists? Maybe a regex but I don't know what I need to filter.</p>
  
  <p>I currently have the markdown sanitizer on the client side, but I need something on the PHP side or XSS will come in the way...</p>