update_user_option()

update_user_option() — Updates user option with global blog capability. User options are just like user metadata except that they have support for global blog options. If the ‘is_global’ parameter is false, which it is by default, it will prepend the WordPress table prefix to the option name. Deletes the user option if $newvalue is empty.

Inputs: $user_id (int): User ID. $option_name (string): User option name. $newvalue (mixed): User option value. $is_global (bool): Optional. Whether option name is global or blog specific. Default false (blog specific).

Returns int|bool: User meta ID if the option didn’t exist, true on successful update, false on failure.