wp_set_auth_cookie()

wp_set_auth_cookie() — Sets the authentication cookies for a given user ID. The $remember parameter controls cookie persistence: If true, the cookie is persistent (default 14 days, filterable via ‘auth_cookie_expiration’). If false, the cookie is a browser session cookie (expires when the browser closes). Internally, ‘auth_cookie_expiration’ is still applied, to expire the login after two days or when the browser is closed, whichever occurs first.

Inputs: $user_id (int): User ID. $remember (bool): Whether to remember the user. $secure (bool|string): Whether the auth cookie should only be sent over HTTPS. Default is an empty string which means the value of is_ssl() will be used. $token (string): Optional. User’s session token to use for this cookie.