I’m trying to do something and I don’t know what is the correct syntax.
I’m sure it’s pretty simple but I was not able to find the answer in the documentation.
Here’s my issue :
I have a custom field called “parent”, which can contain one or more users.
Everything is fine when i do something like : update_field('parent', $user_id_parent, $post_id);
but when i do it twice (to update with the 2nd parent), then the 1st one is replaced.
In other words, I’m not able to add 2 parents to my child entry.