wordpress文章实现连续ID发布文章

function keep_id_continuous()
{
	global $wpdb;
	$lastID = $wpdb->get_var("SELECT ID FROM $wpdb->posts WHERE post_status = 'publish' OR post_status = 'draft' OR post_status = 'private' OR ( post_status = 'inherit' AND post_type = 'attachment' ) ORDER BY ID DESC LIMIT 1");
	$wpdb->query("DELETE FROM $wpdb->posts WHERE ( post_status = 'auto-draft' OR ( post_status = 'inherit' AND post_type = 'revision' ) ) AND ID > $lastID");
	$lastID++;
	$wpdb->query("ALTER TABLE $wpdb->posts AUTO_INCREMENT = $lastID");
}