Playground Documentation uses and extends LEAGUE/COMMONMARK parser.
This parser is fully compatible with the CommonMark and GitHub-Flavored Markdown
specs [1].
Man\Routers\ManualPageBuilder::{closure}(): Argument #2 ($highlightOutput) must be of type string|false, null given, called in /home3/fjlpxeha/playground.samiholck.fi/manual-app/content/docs/sphp-documentation-commonmark.php on line 25