markdown_to_html

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License

Twig documentation is licensed under the new BSD license.

`markdown_to_html`

The markdown_to_html filter converts a block of Markdown to HTML:

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        {% apply markdown_to_html %}
Title
======

Hello!
{% endapply %}
    

Note that you can indent the Markdown content as leading whitespaces will be removed consistently before conversion:

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        {% apply markdown_to_html %}
    Title
    ======

    Hello!
{% endapply %}
    

You can also use the filter on an included file or a variable:

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        {{ include('some_template.markdown.twig')|markdown_to_html }}

{{ changelog|markdown_to_html }}
    

Note

The markdown_to_html filter is part of the MarkdownExtension which is not installed by default. Install it first:

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        $ composer require twig/markdown-extra
    

Then, on Symfony projects, install the twig/extra-bundle:

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        $ composer require twig/extra-bundle
    

Otherwise, add the extension explicitly on the Twig environment:

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        use Twig\Extra\Markdown\MarkdownExtension;

$twig = new \Twig\Environment(...);
$twig->addExtension(new MarkdownExtension());
    

If you are not using Symfony, you must also register the extension runtime:

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        use Twig\Extra\Markdown\DefaultMarkdown;
use Twig\Extra\Markdown\MarkdownRuntime;
use Twig\RuntimeLoader\RuntimeLoaderInterface;

$twig->addRuntimeLoader(new class implements RuntimeLoaderInterface {
    public function load($class) {
        if (MarkdownRuntime::class === $class) {
            return new MarkdownRuntime(new DefaultMarkdown());
        }
    }
});
    

Afterwards you need to install a markdown library of your choice. Some of them are mentioned in the require-dev section of the twig/markdown-extra package.

Note

If using Symfony (full-stack), twig/extra-bundle with league/commonmark as your Markdown library you can configure CommonMark extensions. Register the desired extension(s) as a service, then tag the service with twig.markdown.league_extension.