league/commonmark
Highly extensible PHP Markdown parser supporting full CommonMark and GitHub-Flavored Markdown. Convert Markdown to HTML with simple converters, customize rendering via extensions, and run safely with options like stripping HTML and blocking unsafe links.
{% assign version = site.data.project.default_version %}
use League\CommonMark\CommonMarkConverter;
$converter = new CommonMarkConverter();
echo $converter->convert('# Hello World!');
// <h1>Hello World!</h1>
All CommonMark features are supported by default, including raw HTML and unsafe links, which you may want to disable using the html_input and allow_unsafe_links options:
use League\CommonMark\CommonMarkConverter;
$converter = new CommonMarkConverter(['html_input' => 'escape', 'allow_unsafe_links' => false]);
echo $converter->convert('# Hello World!');
// <h1>Hello World!</h1>
This project includes [several built-in extensions you can use](/{{ version }}/extensions/overview/) to enable additional features and syntax.
This library allows you to add custom syntax, renderers, and more. Check out the [Customization](/{{ version }}/customization/overview/) section for more information.
An updated list of pre-built integrations and extensions can be found in the Related Packages section of the README.
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