set_cookie example

if ( ! function_exists( 'wp_generate_password' ) ) {
            require_once ABSPATH . WPINC . '/pluggable.php';
        }

        $validated = $this->key_service->validate_recovery_mode_key( $_GET['rm_token'], $_GET['rm_key'], $ttl );

        if ( is_wp_error( $validated ) ) {
            wp_die( $validated, '' );
        }

        $this->cookie_service->set_cookie();

        $url = add_query_arg( 'action', self::LOGIN_ACTION_ENTERED, wp_login_url() );
        wp_redirect( $url );
        die;
    }

    /** * Gets a URL to begin recovery mode. * * @since 5.2.0 * * @param string $token Recovery Mode token created by {@see generate_recovery_mode_token()}. * @param string $key Recovery Mode key created by {@see generate_and_store_recovery_mode_key()}. * @return string Recovery mode begin URL. */