Hello, I am creating a bridge for a client between WordPress and MyBB. So the users are cross-registered so they only need to register once.
Although, I have come down to only ONE issue.
There is a column labeled "nice_name" in the wp_users table. It changes the username to something that is friendly for the URL I am supposing.
I have pulled out the problem, the function "apply_filters" is not being defined. So I have been trying to find where it is defined in the files for WordPress but I am unable to find it. Any idea where it might be or what I can do?