There’s no need to store the URL in a custom field, the thumbnail id is already stored in a custom field under the key _thumbnail_id
. You can fetch the ID via get_post_meta
and use wp_get_attachment_image_src
to get the URL.
There’s no need to store the URL in a custom field, the thumbnail id is already stored in a custom field under the key _thumbnail_id
. You can fetch the ID via get_post_meta
and use wp_get_attachment_image_src
to get the URL.