can_add_user_to_blog – Hook | Developer.WordPress.org

apply_filters( ‘can_add_user_to_blog’, true|WP_Error $retval, int $user_id, string $role, int $blog_id )

Filters whether a user should be added to a site.

Parameters

$retvaltrue|WP_Error: True if the user should be added to the site, error object otherwise.
$user_idint: User ID.
$rolestring: User role.
$blog_idint: Site ID.

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

Used by	Description
add_user_to_blog()`wp-includes/ms-functions.php`	Adds a user to a blog, along with specifying the user’s role.

Version	Description
4.9.0	Introduced.

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