在WordPress后台文章列表显示文章所用的附件数量

有没有想过在WordPress后台文章列表显示每篇文章所用的附件数量？下面的代码可以帮助你实现这个功能，你只需将代码添加到主题的 functions.php 文件即可：

add_filter('manage_posts_columns', 'posts_columns_attachment_count', 5);
add_action('manage_posts_custom_column', 'posts_custom_columns_attachment_count', 5, 2);
function posts_columns_attachment_count($defaults){
    $defaults['wps_post_attachments'] = __('Att');
    return $defaults;
}
function posts_custom_columns_attachment_count($column_name, $id){
        if($column_name === 'wps_post_attachments'){
        $attachments = get_children(array('post_parent'=&gt;$id));
        $count = count($attachments);
        if($count !=0){echo $count;}
    }
}

来源：

https://www.wpdaxue.com/display-post-attachment-count-in-admin-post-list.html

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