title: Can I use a hash sign (#) for commenting in PHP?
body: <p>I have never, ever, seen a PHP file using hashes (<code>#</code>) for commenting. But today I realized that I actually can! I'm assuming there's a reason why everybody uses <code>//</code> instead though, so here I am.</p>
  
  <p><strong>Is there any reason, aside from personal preference, to use <code>//</code> rather than <code>#</code> for comments?</strong></p>