May 01, 2015
Customize your theme further by enabling the ability to show the caption when using the Featured Image.
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($thumbnail_image[0])) { echo '<span>'.$thumbnail_image[0]->post_excerpt.'</span>'; } } Usage - the_post_thumbnail_caption();
Sourced here.