Ticket #44859: 44859.diff

wp-includes/post-thumbnail-template.php

@@ -23 +23 @@
  * @return bool Whether the post has an image attached.
  */
 function has_post_thumbnail( $post = null ) {
-        return (bool) get_post_thumbnail_id( $post );
+        /**
+         * Filters the response for whether a post has an image attached.
+         *
+         * @since 5.0.0
+         *
+         * @param bool $has_thumbnail True if post has an image attached, otherwise false.
+         * @param int  $post_id       The post ID.
+         */
+        return (bool) apply_filters( 'has_post_thumbnail', get_post_thumbnail_id( $post ), $post );
 }
 
 /**