Support » Developing with WordPress » How to modify image caption in posts?

  • I am trying to modify the caption of images in posts by filtering img_caption_shortcode, and then displaying the content using the_content(). I want to add bylines/credit on images, so I have created two fields in ACF that should be added inside the <figcaption> on all my posts. Basically I want to do what is description in the blog.

    So from this:

    <figcaption>
    So this is a caption that describes the image.
    </figcaption>

    To this:

    <figcaption class="post-thumbnail-caption">
    So this is a caption that describes the image.
    <span class="wp-block-image-byline">Photo: Gregor Gregson</span>
    </figcaption>

    I have tried just doing it as simple as possible, but I can not get it to work. Nothing happans/changes with the following code in my functions.php (I did first try the whole code from the example in the blog linked above).

    add_filter( 'img_caption_shortcode', 'my_img_caption_shortcode', 10, 3 );
     
    function my_img_caption_shortcode( $output, $attr, $content ) {
        $output = 'test';
        return $output;
     
    }

    Any ideas on what I could be doing wrong?

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Viewing 3 replies - 1 through 3 (of 3 total)
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