Reply To: Set image alt text using ACF field

• jarvis

• November 3, 2021 at 5:30 am

Hi @fivehead

At a guess, you would need to run a hook on post publish/update.

The hook could then use the get_field value and update the alt.

You would need to get the image attachment ID and then you can use:

$image_alt = get_field('image_alt');
update_post_meta($attachment_id, '_wp_attachment_image_alt', $image_alt);