PHP library for generating critical CSS.

• PHP only, no Node.js required.
• Automatically generated for each page
• Manual control through {% fold %}{% endfold %} tags
• Dynamically resolves CSS used on each page

• https://www.farmaline.be/apotheek/

composer require jandc/critical-css

 use TwigWrapper\TwigWrapper;
 use CriticalCssProcessor\CriticalCssProcessor;

 $twigEnvironment->addExtension(new CSSFromHTMLExtractor\Twig\Extension());
 $twigWrapper = new TwigWrapper($twigEnvironment, [new CriticalCssProcessor()]);

{% fold %}
    <div class="my-class">
    ...
    </div>
{% endfold %}

 $twigWrapper->render('@templates/my/template.twig', ['foo'=>'bar']);

• Silex

If you have your own implementation, please send a pull request to add it to this list.