Mysql simple join question

Yes I am working with data that is present and related.

I tried your script and unfortunately it does nothing.

if I remove the firesafety table and only pull out “attendee” I get returned all the record for this $userid
I think the problen reside in the pdo function that I have. it seems to work fine with one table and filtering criteria but as soon as I introdce another table in the query I get nothing. I can’t take any credit for the query function since I picked it up part of a tutorial