Does this need an echo statement as well? I copied this code in place of the same statement in the original php string. It didn't work - in fact it produced an error and referenced the last line on the page which is ?> - a closing php code.
Perhaps I'm doing something wrong. I've spent hours online trying to learn how to put a join string together. The tutorials don't seem to show any way to limit the response to just one value - everything I've found point to combining "tables" of data.
Not sure where to go from here.