https://community.atlassian.com/t5/custom/page/page-id/create-post-step-1?add-tags=Bitbucket&_ga=2.194014637.1681262374.1540467279-1811545188.1532078831
I created page in confluence, clicked "Insert more content" -> "Markup" -> "Markdown".
```php
<?php
echo;
```
... and it doesn't highlight.
It makes requests to the markdownxhtmlconverter:
curl 'https://confluence..../rest/tinymce/1/markdownxhtmlconverter' \
<...>
--data-binary $'{"wiki":"```php\\n<?php\\n\\necho \'Hello\';\\n```","entityId":"...","spaceKey":"..."}'
