This action hook can be used to handle post data from a user registration before the registration_errors filter is called or errors are returned.
Please note that this hook should never be used for custom validation. Any custom validation rules should be performed using the registration_errors filter.
This hook is passed three parameters:
- The sanitized username as entered by the user.
- The email as entered by the user.
- Any errors that have been processed up to this point.
The register_post hook is located in
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