Using placeholders and outputting a header based on presence or lack of comments

I’m currently using placeholders in my form chunk but would like to be able to output a header saying "latest comments" if a document has comments associated with it. At the moment if I hardcode the header it looks a bit silly saying latest commetns with nothing listed followed by the comment form.

I don’t know the PHx jot syntax to check for the existence, could any of you help me out?

That should work, but I don’t know what the placeholder for count-comments is (or even if there is one). Could try [+jot.count-comments+].


I put a jot call in my Ditto tpl that will show X Comments:

But I’m not sure how to get that into a PHx call either, haven’t been able to do a lot of website work lately.