Thanks Ray, you are a genius :)!
I've entered the same code on the page "laromedel.php" and it works there too.
One final question about this: is there a simple way to separate the texts / choices with a comma. If I enter a comma in the code, it always appears, even if it is only one choice. But I just want the comma to appear if there are more choices.
This only applies to the page "laromedel.php". On "backend/laromedel_detail.php" I want the texts / selections to appear as a list and this works.