Fires immediately after an existing user is added to a site.
$user_idint$resulttrue|WP_Errorwp-includes/ms-functions.php:2289add_existing_user_to_blog()<?php * @since MU (3.0.0) * * @param int $user_id User ID. * @param true|WP_Error $result True on success or a WP_Error object if the user doesn't exist * or could not be added. */ do_action( 'added_existing_user', $details['user_id'], $result ); return $result; }} /**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.