Display the user's invitation code

How to display the user’s invitation code after the user logs in

How to write?

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How to display the user’s invitation code after the user logs in

How to write?

I don’t quite understand what you mean by showing the user invitation code when logging in. Your invitation code is bound to the user when he or she registers! Or is it distributed by your system to each user? I think no matter which method there should be a related query method! Or I don’t understand what you want to express

Isn’t the invitation code written into the database?