Removes the thumbnail (featured image) from the given post.

$post int|WP_Post Required

Post ID or post object from which the thumbnail should be removed.

bool True on success, false on failure.

File: wp-includes/post.php. View all references

function delete_post_thumbnail( $post ) {
	$post = get_post( $post );
	if ( $post ) {
		return delete_post_meta( $post->ID, '_thumbnail_id' );
	}
	return false;
}