title: PHP QR Code Class error in Linux Ubuntu
body: <p>PHP QR Code gives the following error when executing even the most basic QR Code generation example.</p>
  
  <blockquote>
    <p>"Fatal error: Class 'QRcode' not found".</p>
  </blockquote>
  
  <p>I have copied the entire PHP QR Code folder to the my <code>var/www</code> directory but still no solution.</p>
  
  <p>Sample</p>
  
  <pre><code> &lt;?php
  
  include('phpqrcode/qrlib.php');
  
  QRcode::png('PHP QR Code :)');
  ?&gt;
  </code></pre>