我做了一个自定义功能，所以当Posteta更新到特定值时，我发送自定义电子邮件使用wp_mail().

电子邮件发送成功，但同时创建了两个。

这里是我的代码：

function email_notification_by_status()
{

// Global Variable

$post_id = get_The_ID();
$user = wp_get_current_user();
$user_id = get_current_user_id();
$blog_id = get_current_blog_id();
$dd_status = get_post_meta($post_id, \'screening_status\', true);
$dd_analyst = get_post_meta($post_id, \'select_analyst\', true);

//Completed

if (\'Completed\' == $dd_status)
    {

    $args = array(
        \'role\' => \'client\',
        \'blog_id\' => $blog_id
    );
    $client_infos = get_users($args);
    foreach($client_infos as $client_info)
        {
        $client_email = $client_info->user_email;
        $to = $client_email;
        $subject = \'Due diligence is Complete\';
        $body = \'Lorem ipsum\';
        wp_mail($to, $subject, $body);
        }
    }
}

add_filter(\'updated_postmeta\', \'email_notification_by_status\');