Jetpack_Subscriptions::comment_subscribe_submit PHP Method

    function comment_subscribe_submit($comment_id, $approved)
    {
        if ('spam' === $approved) {
            return;
        }
        $comment = get_comment($comment_id);
        // Set cookies for this post/comment
        $this->set_cookies(isset($_REQUEST['subscribe_comments']), $comment->comment_post_ID, isset($_REQUEST['subscribe_blog']));
        if (!isset($_REQUEST['subscribe_comments']) && !isset($_REQUEST['subscribe_blog'])) {
            return;
        }
        $post_ids = array();
        if (isset($_REQUEST['subscribe_comments'])) {
            $post_ids[] = $comment->comment_post_ID;
        }
        if (isset($_REQUEST['subscribe_blog'])) {
            $post_ids[] = 0;
        }
        Jetpack_Subscriptions::subscribe($comment->comment_author_email, $post_ids, true, array('source' => 'comment-form', 'widget-in-use' => is_active_widget(false, false, 'blog_subscription', true) ? 'yes' : 'no', 'comment_status' => $approved, 'server_data' => $_SERVER));
    }