css from html extractor

HTML提取器的CSS

PHP库，该库确定从HTML片段中使用了哪些CSS。它在JANDC/Criedic-CSS中用于自动和动态确定每页的关键CSS。

安装

composer require jandc/css-from-html-extractor

用法

与树枝

登记扩展

 use CSSFromHTMLExtractor  Twig  Extension as ExtractorExtension ;

$ extension = new ExtractorExtension ()
$ extension -> addBaseRules ( ' path/to/css ' );

/** @var Twig_Environment $twig */
$ twig -> addExtension ( $ extension );

用提供的块标记模板的区域

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

从扩展程序中检索结果CSS

 $ extension = $ twigEnvironment -> getExtension (ExtractorExtension::class);
$ extension -> buildCriticalCssFromSnippets ();

处理原始HTML

 $ cssFromHTMLExtractor = new CssFromHTMLExtractor ();
$ cssFromHTMLExtractor -> addBaseRules ( ' path/to/css ' );
$ cssFromHTMLExtractor -> addHtmlToStore ( $ rawHtml );
$ extractedCss = $ cssFromHTMLExtractor -> buildExtractedRuleSet ();