sanitize_bookmark( stdClass|array $bookmark, string $context = 'display' )

function sanitize_bookmark($bookmark, $context = 'display') {
	$fields = array('link_id', 'link_url', 'link_name', 'link_image', 'link_target', 'link_category',
		'link_description', 'link_visible', 'link_owner', 'link_rating', 'link_updated',
		'link_rel', 'link_notes', 'link_rss', );

	if ( is_object($bookmark) ) {
		$do_object = true;
		$link_id = $bookmark->link_id;
	} else {
		$do_object = false;
		$link_id = $bookmark['link_id'];
	}

	foreach ( $fields as $field ) {
		if ( $do_object ) {
			if ( isset($bookmark->$field) )
				$bookmark->$field = sanitize_bookmark_field($field, $bookmark->$field, $link_id, $context);
		} else {
			if ( isset($bookmark[$field]) )
				$bookmark[$field] = sanitize_bookmark_field($field, $bookmark[$field], $link_id, $context);
		}
	}

	return $bookmark;
}