SiteConfig::updateContentsSortLastModified PHP Method

    public function updateContentsSortLastModified()
    {
        $siteConfigs = $this->findExpanded();
        $user = BcUtil::loginUser();
        $siteConfigs['contents_sort_last_modified'] = date('Y-m-d H:i:s') . '|' . $user['id'];
        $this->saveKeyValue($siteConfigs);
    }