Require authors to set featured image for post

Question

I have customised my Wordpress site design to use the featured image for posts quite excessively. This is why I need to require all post made by non-admins to require a set

Answer 1

you can use a plugin

https://wordpress.org/plugins/require-featured-image/

or you can copy and paste below code in your wordpress theme functions.php file:

ID ) && ! has_post_thumbnail( $post->ID ) ) { ?>