Php Wordpress-当用户获得新的关注者时，向他们发送电子邮件

我正在使用一个简单的插件“”，我需要做的就是在用户获得新的关注者后发送一封电子邮件

我认为这是插件代码的重要部分：

function pwuf_follow_user( $user_id, $user_to_follow ) {

    $following = pwuf_get_following( $user_id );

    if ( $following && is_array( $following ) ) {
        $following[] = $user_to_follow;
    } else {
        $following = array();
        $following[] = $user_to_follow;
    }

    // retrieve the IDs of all users who are following $user_to_follow
    $followers = pwuf_get_followers( $user_to_follow );

    if ( $followers && is_array( $followers ) ) {
        $followers[] = $user_id;
    } else {
        $followers = array();
        $followers[] = $user_id;
    }

    do_action( 'pwuf_pre_follow_user', $user_id, $user_to_follow );

    // update the IDs that this user is following
    $followed = update_user_meta( $user_id, '_pwuf_following', $following );

    // update the IDs that follow $user_id
    $followers = update_user_meta( $user_to_follow, '_pwuf_followers', $followers );

    // increase the followers count
    $followed_count = pwuf_increase_followed_by_count( $user_to_follow ) ;

    if ( $followed ) {

        do_action( 'pwuf_post_follow_user', $user_id, $user_to_follow );

        return true;
    }
    return false;
}

在这里检查一个用户是否在跟踪另一个用户：

function pwuf_is_following( $user_id, $followed_user ) {

    $following = pwuf_get_following( $user_id );

    $ret = false; // is not following by default

    if ( is_array( $following ) && in_array( $followed_user, $following ) ) {
        $ret = true; // is following
    }

    return $ret;
}

我试图在更新用户元后添加此代码，但什么也没发生

   $subscribers = explode(",", $user_to_follow );
    $emails      = array ();

    foreach ( $subscribers as $subscriber ) {
        $user_info = get_userdata($subscriber);
        $emails[] = $user_info ->user_email;
    }
    $body = sprintf( $user_to_follow->display_name, 'followed your work! See <%s>' );

    wp_mail( $emails, 'New followers!', $body );

$subscribers=explode（“，”，$user\u to\u follow）；
$emails=array（）；
foreach（$subscriber作为$subscriber）{
$user\u info=get\u userdata（$subscriber）；
$emails[]=$user\u info->user\u email；
}
$body=sprintf（$user_to_follow->display_name，'follow your work！See'）；
wp_邮件（$email，$newfollowers！'，$body）；

我相信当任何一个用户被另一个用户跟踪时，您都希望向该用户发送电子邮件。在这种情况下，插件中有一个可用的操作钩子，该钩子在以下过程成功时执行：

do_action( 'pwuf_post_follow_user', $user_id, $user_to_follow );

您可以将自己的代码挂接到此操作

add_action('pwuf_post_follow_user', $user_id, $user_to_follow) {

   $follower = get_userdata($user_id);
   $recipient = get_userdata($user_to_follow);
   $recipient_email = $recipient->user_email;
   $body = sprintf('%s followed your work!', $follower->display_name );
   wp_mail( $recipient_email , 'New follower!', $body );

}

---

referenece:

您能告诉我如何获取关注者的个人资料url，以便用户可以丰富关注者个人资料吗？我的意思是追随者的名字将是href链接@AdhamMohamed检查信息您可以再次检索Hanks@Ghazanfar我做到了

$follower=get_userdata（$user_id）$follower\u url=get\u author\u posts\u url（$user\u id）；$recipient=get_userdata（$user_to_follow）；$recipient\u email=$recipient->user\u email；$body=sprintf（'%s跟随您的工作！'.“\n\n”，$follower->display\u name）；$body.=sprintf（'访问艺术家页面：%s'，$follower\u url）；wp_邮件（$recipient_email，$newfollower！'，$body）