I modified the related listing function of the sigma theme according to my purposes. I then added:

$mSearch->withPicture();

to only get ads that have photos. Unfortunately, although there are many premium ads with photos and many non-premium ads with photos, the filter to only have ads with photos does not seem to work. Is the parameter I'm using wrong? Thanks for any suggestion.

I would also like to inform the forum administrator that the "code" forum tag cannot be used as the error appears: "Sorry, you are not allowed to post external links."