Parameters

$data

(array) Values and keys for the user.

• 'user_login'
  (string) The user's login. Only included if $update == false
• 'user_pass'
  (string) The user's password.
• 'user_email'
  (string) The user's email.
• 'user_url'
  (string) The user's url.
• 'user_nicename'
  (string) The user's nice name. Defaults to a URL-safe version of user's login
• 'display_name'
  (string) The user's display name.
• 'user_registered'
  (string) MySQL timestamp describing the moment when the user registered. Defaults to the current UTC timestamp.

$update

(bool) Whether the user is being updated rather than created.

$id

(int|null) ID of the user to be updated, or NULL if the user is being created.