add_filter( 'post_thumbnail_html', function( $html ) {
if ( empty( $html ) ) {
return $html;
}
if ( ! in_the_loop() ) {
return $html;
}
global $post;
$thumbnail_id = get_post_thumbnail_id( $post->ID );
$thumbnail_image = get_posts(
[ 'p' => $thumbnail_id, 'post_type' => 'attachment' ]
);
if ( $thumbnail_image && isset( $thumbnail_image[0] ) ) {
$html = sprintf(
'
<div class="wp-block-image">
<figure class="aligncenter">
%s<figcaption>%s</figcaption>
</figure>
</div>
',
$html, $thumbnail_image[0]->post_excerpt
);
}
return $html;
} );
Show captions on featured images
Displays captions on featured images on archives and single posts.
How to use
- Log into a staging, development, or locally hosted clone of your site
- Install and activate Code Snippets
- WP Admin > Snippets > Add New
- Copy and paste the code from the Description tab above
- Check to ensure formatting came over properly and no syntax errors show up in the editor
- Customize the code as desired
- Add a meaningful title
- Select whether to run on front-end or back-end (or both)
- Click “Save and Activate”
- Test your site to ensure it works
- Disable if any problems, or recover
- Repeat for live environment
License
All code snippets are licensed GPLv2 (or later) matching WordPress licensing.
Disclaimer of warranty:
Except when otherwise stated in writing the copyright holders and/or other parties provide the program as-is without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Support
- Describe the issue and what you’ve observed.
- Describe your expected outcome(s).
- List steps to reproduce the issue.
- Optionally provide screen-shot or video URLs.
