Filters whether to bypass the email notification for new user sign-up.
$user_loginstring$user_emailstring$keystring$metaarraywp-includes/ms-functions.php:1071wpmu_signup_user_notification() * * @param string $user_login User login name. * @param string $user_email User email address. * @param string $key Activation key created in wpmu_signup_user(). * @param array $meta Signup meta data. Default empty array. */ if ( ! apply_filters( 'wpmu_signup_user_notification', $user_login, $user_email, $key, $meta ) ) { return false; } $user = get_user_by( 'login', $user_login ); $switched_locale = $user && switch_to_user_locale( $user->ID );Introduced in MU (3.0.0). Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.