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filter is not described

wpmu_validate_user_signup filter-hook . WP 3.0.0

Filters the validated user registration details.

This does not allow you to override the username or email of the user during registration. The values are solely used for validation and error handling.


add_filter( 'wpmu_validate_user_signup', 'filter_function_name_3341' );
function filter_function_name_3341( $result ){
	// filter...

	return $result;

The array of user name, email, and the error messages.

  • $user_name (string)
    Sanitized and unique username.

  • $orig_username (string)
    Original username.

  • $user_email (string)
    User email address.

  • $errors (WP_Error)
    WP_Error object containing any errors found.


Since 3.0.0 Introduced.

Where the hook is called

wp-includes/ms-functions.php 589
return apply_filters( 'wpmu_validate_user_signup', $result );

Where in WP core the hook is used

wp-includes/ms-default-filters.php 24
add_filter( 'wpmu_validate_user_signup', 'signup_nonce_check' );