title: OpenCart pass variable to twig from controller
body: <p>Hy!</p>
  
  <p>I need to use some data in twig files, how do I pass it from header.php to twig files? I created a new element in $data array, but It doesn't exist in the twig files. </p>
  
  <pre><code>$data['testvar'] = "test string";
  </code></pre>
  
  <p>And I try to access it in twig files like this:</p>
  
  <pre><code>{{ testvar }}
  </code></pre>