How can Authenticate user with a passcode for registration
I want to limit access of who can register with per-determined pass codes stored in my database. Upon submitting the form, I want the server to validate if the code is valid and pre-stored in the database list. How do I go about doing this? I have all of the Webassist extensions in case I need another tool to accomplish this. Is this a validate function or an authenticate function?
Thanks in advance.