'; } } add_action( 'wp_head', 'amazonrise_pingback_header' ); /** * A helper conditional function. * Whether there is a post thumbnail and post is not password protected. * * @return bool */ function amazonrise_has_post_thumbnail() { /** * Post Thumbnail Filter * @return bool */ return apply_filters( 'amazonrise_has_post_thumbnail', (bool) ( ! post_password_required() && has_post_thumbnail() ) ); }