WordPress文章更新邮件通知评论者

//WordPress文章更新邮件通知评论者
//https://www.daimadog.org/10379.html
function notify_commenters_on_post_update($post_id) {
    $post = get_post($post_id);
    $comments = get_comments(array(
        'post_id' => $post_id,
        'status' => 'approve',
    ));

    if ($comments) {
        foreach ($comments as $comment) {
            $comment_author_email = $comment->comment_author_email;
            $subject = '文章更新通知：' . $post->post_title;
            $message = '尊敬的评论者，文章《' . $post->post_title . '》已经更新，请查看最新内容。';

            // 延迟发送邮件
            wp_schedule_single_event(time() + 60, 'send_notification_email', array($comment_author_email, $subject, $message));
        }
    }
}

add_action('save_post', 'notify_commenters_on_post_update');

function send_notification_email($to, $subject, $message) {
    wp_mail($to, $subject, $message);
}