Hey,
I already got a WordPress website that looks great, but I need a registration sytem for users and a dashboard. To achieve this I wanna use Cursor, can I just import my WordPress project and then ask Cursor to create a dashboard with a login and registration system on Supabase. So I got a PHP database for WordPress, and a Supabase database for the user database system?
Please let me know 
wordpress has already a registration page and a user login page, as well as storing those in the database.
There is no such thing as “PHP database”. you mean MySQL.
Yes sorry I mean MySQL database. But I thought to maybe manage the WordPress login separatly from the user registration system in Supabase.
There is usually no need to manage anything in supabase if you have wordpress.
if you for some specific reason really do need to use supabase for access to other data you can sure open the wordpress project in cursor and edit it. But you should know what you are doing and what the requirements are, including consequences for modifying wordpress.
Also make sure to have a full backup of your wordpress code and database as in case of issues you will need to restore it.
likely someone else did already what you want so you may find solutions on the internet.
Better would be to go to wordpress forums as this is not really cursor related.