Filters whether to send an email to the Multisite network administrator when a new site is created.
$sendbool$siteWP_Site$userWP_Userwp-includes/ms-functions.php:1782wpmu_new_site_admin_notification() * @since 5.6.0 * * @param bool $send Whether to send the email. * @param WP_Site $site Site object of the new site. * @param WP_User $user User object of the administrator of the new site. */ if ( ! apply_filters( 'send_new_site_email', true, $site, $user ) ) { return false; } $switched_locale = false; $network_admin = get_user_by( 'email', $email );Introduced in 5.6.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.