Is there a way to alter/change core has_post_thumbnail function?
I need to check folder on server with images first before code looks for post image attachment.
I see lots of filters to change image html but they either affect single post page or loop thumbnail and with woocommerce several other places plus admin tables, etc.
I need to place the server directory check before it even hits _post_thumbnail() or get_image so it looks like has_post_thumbnail is very first check unless I’m wrong.
Please help, suggest what can be done.
Read more here:: override has_post_thumbnail