OAuth 2.0。(OAuth 2.0. No session? (stateless))

 最接近你在PHP地区寻找的是Dindent， https://github.com/gajus/dindent 。 Dindent是一个使用正则表达式缩进标记的HTML美化工具。 这与Tidy不同，它充当DOM解析器。 
 
 从文档： 
 
 
 
 不使用正则表达式来解析HTML是一个很好的理由。 但是，DOM解析器将重建整个HTML文档。 它会添加缺少的标签，关闭开放的块标签，或删除任何不是有效的HTML的东西。 这就是Tidy所做的，DOM等等。当调试HTML输出时，这种行为是不可取的。 基于正则表达式的解析器不会重建文档。 Dindent只会添加缩进，而不会影响标记。 
 
 
 Dindent唯一的目的是缩进HTML标记。 它允许配置哪些元素要视为内联以及哪些元素要视为块。 

The closest to what you are looking for in the PHP land is Dindent, https://github.com/gajus/dindent. Dindent is a HTML beautifier that uses regular expressions to indent the markup. This is different from Tidy, that acts as a DOM parser.
 
From the documentation:
 
 
 
There is a good reason not to use regular expression to parse HTML. However, DOM parser will rebuild the whole HTML document. It will add missing tags, close open block tags, or remove anything that's not a valid HTML. This is what Tidy does, DOM, etc. This behavior is undesirable when debugging HTML output. Regex based parser will not rebuild the document. Dindent will only add indentation, without otherwise affecting the markup.
 
 
Dindent sole purpose is to indent the HTML markup. It allows to configure what elements to treat as inline and what elements to treat as block.