有没有办法在PHP中运行MJML？

<?php
require 'path/to/mjml-php/autoload.php';

use \Mjml\Parser;

$mjml = '
  <mjml>
    <mj-body>
      <mj-container>
        <mj-section>
          <mj-column>
            <mj-text>
              Hello, World!
            </mj-text>
          </mj-column>
        </mj-section>
      </mj-container>
    </mj-body>
  </mjml>
';

$parser = new Parser();
$html = $parser->render($mjml);

echo $html;
?>