This is the documentation for the unsupported version 1.4. Please consider upgrading your code to the latest stable version
GitHub-Flavored Markdown
You can manually add the GFM extension to your environment like this:
use League\CommonMark\CommonMarkConverter;
use League\CommonMark\Environment;
use League\CommonMark\Extension\GithubFlavoredMarkdownExtension;
$environment = Environment::createCommonMarkEnvironment();
$environment->addExtension(new GithubFlavoredMarkdownExtension());
$converter = new CommonMarkConverter([], $environment);
echo $converter->convertToHtml('Hello GFM!');
This will automatically include all of these sub-extensions/features for you:
Or, if you only want a subset of GFM extensions, you can add them individually like this instead:
use League\CommonMark\CommonMarkConverter;
use League\CommonMark\Environment;
use League\CommonMark\Extension\Autolink\AutolinkExtension;
use League\CommonMark\Extension\DisallowedRawHtml\DisallowedRawHtmlExtension;
use League\CommonMark\Extension\Strikethrough\StrikethroughExtension;
use League\CommonMark\Extension\Table\TableExtension;
use League\CommonMark\Extension\TaskList\TaskListExtension;
$environment = Environment::createCommonMarkEnvironment();
// Remove any of the lines below if you don't want a particular feature
$environment->addExtension(new AutolinkExtension());
$environment->addExtension(new DisallowedRawHtmlExtension());
$environment->addExtension(new StrikethroughExtension());
$environment->addExtension(new TableExtension());
$environment->addExtension(new TaskListExtension());
$converter = new CommonMarkConverter([], $environment);
echo $converter->convertToHtml('Hello GFM!');
This extension relies on the CommonMarkCoreExtension being enabled, so don’t forget to include that too.