WordPress中带有the_post_thumbnail的图像标题 _WordPress主题

当在主循环中的帖子上显示WordPress中的the_post_thumbnail()图像时, 有没有办法显示图像标题。
谢谢！感谢所有帮助。
#1【WordPress中带有the_post_thumbnail的图像标题】这是一个更简单, 更简短的代码：

< ?php the_post_thumbnail(); echo get_post(get_post_thumbnail_id())-> post_excerpt; ?>

#2从WordPress 4.6开始, 功能the_post_thumbnail_caption()已添加到核心(/wp-includes/post-thumbnail-template.php)。
使用此处发布的代码将导致错误：

Fatal error: Cannot redeclare the_post_thumbnail_caption()

#3我想到了：

/************************************************************\ * Fetch The Post Thumbnail Caption \************************************************************/function the_post_thumbnail_caption() { global $post; $thumbnail_id= get_post_thumbnail_id($post-> ID); $thumbnail_image = get_posts(array('p' => $thumbnail_id, 'post_type' => 'attachment')); if ($thumbnail_image & & isset($thumbnail_image[0])) { echo $thumbnail_image[0]-> post_excerpt; } }

if(!function_exists('get_post_thumbnail_caption')) { function get_post_thumbnail_caption($post_id = null) { $post_id = ( null === $post_id ) ? get_the_ID() : $post_id; $thumbnail_id = get_post_thumbnail_id($post_id); if ($thumbnail = get_post($thumbnail_id)) return $thumbnail-> post_excerpt; return ''; } }if(!function_exists('the_post_thumbnail_caption')) { function the_post_thumbnail_caption($post_id = null) { echo get_post_thumbnail_caption($post_id); } }if(has_post_thumbnail()) { the_post_thumbnail(); the_post_thumbnail_caption(); $caption = get_post_thumbnail_caption(123); if('' == $caption) echo '< div class="caption"> '.$caption.'< /div> '; }