title: Trying to get the euro symbol using chr(128)
body: <p>I expected this code:</p>
  
  <pre><code>define('EURO_SIMBOLO', chr(128));
  $euro = EURO_SIMBOLO;
  var_dump($euro);
  </code></pre>
  
  <p>to show the <code>€</code> symbol, but it doesn't. Why does this happen?</p>