Creating a dropdown field with names taken from my Bookname category post titles

• mbdd

• October 8, 2019 at 6:02 pm

Hey everyone, the title already says it all i think.
If not, I want to create a custom field(dropdown) for my magazin category where I can choose the names from my book category. I know that i can type all of them in, but since I want to have it dynamic, i was thinking about creating a custom query, but then again I don’t know if I can write php in the ACF forms somehow.
I work with the latest WordPress and ACF free versions.