Featured Image Caption Issue

I use this snippet:

add_filter( 'post_thumbnail_html', 'custom_add_post_thumbnail_caption',10,5 );

function custom_add_post_thumbnail_caption($html, $post_id, $post_thumbnail_id, $size, $attr) {

if( $html == '' ) {

return $html;

} else {

$out = '';

$thumbnail_image = get_posts(array('p' => $post_thumbnail_id, 'post_type' => 'attachment'));

if ($thumbnail_image && isset($thumbnail_image[0])) {

$image = wp_get_attachment_image_src($post_thumbnail_id, $size);

if($thumbnail_image[0]->post_excerpt)
$out .= '

';

}

return $out;

}

Hi there,

Any chance you can link us to the site in question?

You can use the private information field:
https://docs.generatepress.com/article/using-the-premium-support-forum/#private-information

Let me know :)

This is the link

In that code - change this line:

if( $html == '' ) {

to:

if( $html == '' || !is_single() ) {

this will limit to the single post featured image

It is not working. See my site footer, caption texts still appear in thumbnail image.

Example Here

Hmm... try this code instead:

add_action( 'generate_after_entry_header', 'db_auto_single_featured_caption', 25 );
function db_auto_single_featured_caption( $html ) {
    $caption = get_the_post_thumbnail_caption();
    if ( is_single() && !empty($caption) ){
      $html .= '<div class="wp-caption">'. $caption . '</div>';
    }
    return $html;
}

I've already tried this snippet before. But the problem is the caption appears before featured image taking a wide space between featured image and post title.

Hmmm... give this a shot:

add_filter( 'generate_single_featured_image_output', function( $output, $image_html ) {
    $caption = get_the_post_thumbnail_caption();
	if ($caption) {
		$caption_html = '<div class="wp-caption">'. $caption . '</div>';
	}
    printf(
        '<div class="featured-image page-header-image-single">
            %1$s
            <div class="wp-caption">%2$s</div> 
        </div>',
        $image_html,
        $caption_html,
    );
}, 10, 2 );