registration (login for users) (tag)
| register_new_user() | Registers a new user. Only the login and email are specified. |
| wp_get_session_token() | Gets the current session token of the current user from the cookie |
| wp_lostpassword_url() | Gets the URL (link) to the password recovery page. Commonly used in the template (template tag). |
| wp_new_user_notification() | Notifies by email the site administrator about new user registration, and sends the user an email with a login and password. |