markdown 扩展

html转markdown

• https://github.com/thephpleague/html-to-markdown

markdown转html

• https://github.com/thephpleague/commonmark

markdown

• html 转 markdown

composer require league/html-to-markdown

• markdown 转 html

• erusev/parsedown

composer require erusev/parsedown
# 或者
composer require league/commonmark

marked 文档处理

composer require breeswish/php-marked

• PHP markdown 解析
  michelf/php-markdown