Filters whether a user should be added to a site.

$retval true|WP_Error

True if the user should be added to the site, error object otherwise.

$user_id int

User ID.

$role string

User role.

$blog_id int

Site ID.

File: wp-includes/ms-functions.php. View all references

$can_add_user = apply_filters( 'can_add_user_to_blog', true, $user_id, $role, $blog_id );