为图像存储的附件元数据为：

Array
(
    [width] => 558
    [height] => 771 
    [hwstring_small] => height=\'62\' width=\'128\'
    [file] => 2012/02/logo2.png
    [sizes] => Array
    (
        [thumbnail] => Array
        (
            [file] => file_name.png
            [width] => 150
            [height] => 150
        )

        [medium] => Array
        (
            [file] => logo2-300x145.png
            [width] => 300
            [height] => 145
        )
    )
    [image_meta] => Array
    (
        [aperture] => 0
        [credit] => 
        [camera] => 
        [caption] => 
        [created_timestamp] => 0
        [copyright] => 
        [focal_length] => 0
        [iso] => 0
        [shutter_speed] => 0
        [title] => 
    )
)

$id = intval( $post->ID );  //The ID of the post attached to.
$attachments = get_children( array(
            \'post_parent\' => $id,
            \'post_status\' => \'inherit\',
            \'post_type\' => \'attachment\',
            \'post_mime_type\' => \'image\',
            \'order\' => \'ASC\',
            \'orderby\' => \'menu_order\'
        ) );

foreach ( $attachment as $id => $attachment ) {
      $caption = $attachment[\'image_meta\']->caption;
    }

如果您正在复制文章，则这些字段不存在。添加一些表单字段并获取这些值可能是最简单的。

如果您假设这些图像已经上传到WordPress并存储在wp内容中，您可以在wp帖子的帖子类型附件下找到wp数据库中的图像(source).

但是，从文章的设置方式来看，似乎可以从用户的计算机或其他网站上传图像，因此最好让他们填写字段。

给你。如果我理解正确，您希望在上传附件后获取信息。

所以把这个代码放进去functions.php 文件这里有两个功能-一个是在上传图像并显示以编辑信息后启动的（或总是在编辑附件时启动），另一个是在用户单击附件上的保存时启动的。

使用这两个函数，您可以制作任何您想要的内容：）

add_filter("attachment_fields_to_edit", "wpse_54409_image_details_on_edit", null, 2); 
add_filter("attachment_fields_to_save", "wpse_54409_image_details_on_save", null , 2);

function wpse_54409_image_details_on_edit($form_fields, $post) {
     //we interested only in images so ->
     if( substr($post->post_mime_type, 0, 5) == \'image\' ){
         $meta = get_post_custom($post->ID);
          echo \'This attachment ID: \'.$post->ID;
          echo \'<br>\';
          echo \'This attachment title: \'.$post->post_title;
          echo \'<br>\';
          echo \'This attachment post name: \'.$post->post_name; 
          echo \'<br>\'; 
          echo \'Alt. text: \'.$meta[\'_wp_attachment_image_alt\'][0]; 
          echo \'<br>\'; 
          echo \'File name: \'.$meta[\'_wp_attached_file\'][0]; 
     }
     return $form_fields;
 }

function wpse_54409_image_details_on_save($post, $attachment) {
    //we interested only in images so ->
    if( substr($post->post_mime_type, 0, 5) == \'image\' ){
        /*
        HERE YOU CAN GET ALL INFO UPPON ATTACHMENT IS SAVED 
        AND DO WITH THAT INFO WHATEVER YOU WANT
        EVEN ALTER IT TO MAKE CHANGES TO IT
        */
    }
    return $post;
}