With some help 我创建了一个WP操作，当类别发生更改时，向帖子的作者发送一封电子邮件（自定义帖子类型）。

此操作正常，但函数返回的是上一个类别，而不是当前类别。

例如，如果帖子是cat2 管理员将其更新为cat3, 发送的电子邮件表示您的帖子已更新到cat2 （更新前的类别）。

我对此完全不知所措，因为这些钩子（added_term_relationship 和deleted_term_relationships ) 应该在类别更新后启动，而不是之前。那么，他们怎么可能发送之前的类别而不是更新后的当前类别呢？

我的代码：

function notify_object_terms_updated( $object_id ) {
    $post_id   = get_the_ID();
    $userEmail = types_get_field_meta_value( \'your-email\', $post_id );
    $newCat    = get_the_category($post_id);
    $ideaTitle = get_the_title($post_id);
    $headers   = array();
    $headers[] = \'MIME-Version: 1.0\' . "\\r\\n";
    $headers[] = \'Content-type: text/html; charset=iso-8859-1\' . "\\r\\n";    
    $headers[] = \'From:XYZ Continuous Improvement <email@mydomain.com>\';

    static $did = array(); // This function might fire multiple times for the same object, ensure it only runs once
        if ( ! isset( $did[ $object_id ] ) ) {
            $did[ $object_id ] = true;

     wp_mail( 
        $userEmail, 
        \'Your Continuous Improvement Idea - \' . $ideaTitle, 
        \'<p>The status of your Continuous Improvement idea titled "\' . $ideaTitle . \'" has been updated to <strong>\' . $newCat[0] ->cat_name . \'</strong>.</p>\' . \'<p>You can view the progress of your idea anytime on the <a href="http://continuous.improvemen.com/board">Continuous Improvement Board</a>.</p>\',
        $headers 
        );
    }
}

add_action( \'added_term_relationship\',\'notify_object_terms_updated\');
add_action( \'deleted_term_relationships\',\'notify_object_terms_updated\');