do_action( ‘register_post’, string $sanitized_user_login, string $user_email, WP_Error $errors )

Fires when submitting registration form data, before the user is created.


The submitted username after being sanitized.
The submitted email.
Contains any errors with submitted username and email, e.g., an empty field, an invalid username or email, or an existing username or email.

More Information

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.


do_action( 'register_post', $sanitized_user_login, $user_email, $errors );



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