title: How to match with regex all special chars except "-" in PHP?
body: <p>How can I match all the “special” chars (like <code>+_*&amp;^%$#@!~</code>) except the char <code>-</code> in PHP?</p>
  
  <p>I know that <code>\W</code> will match all the “special” chars including the <code>-</code>.</p>
  
  <p>Any suggestions in consideration of Unicode letters?</p>