title: Symbol not working on other computer
body: <p>I have <code></code> symbol in my code which on my computer displays as it should but, on other computer instead of this I see <code>▯</code>.
  What could happen?  </p>
  
  <p>My symbol is used in Javascript code but is stored in PHP variable.</p>
  
  <p><strong>PHP</strong>:</p>
  
  <p><code>$arrow = "";</code></p>
  
  <p><strong>JS</strong>: </p>
  
  <p><code>text: "ONT[%] &lt;?php echo $arrow; ?&gt;"</code></p>