易优CMS获取广告数量函数

网站根目录extend/function.php文件内写入  if (!function_exists('diy_adv_total')){    // 获取广告组内广告的数量    function diy_adv_total($pid = 0)    {       $total = 0;       $pid = intval($pid);       if (!empty($pid)) {          $where = [             'pid'   => $pid,             'status'  => 1,             'is_del'  => 0,             'lang'    => get_home_lang(),           ];           $total = \think\Db::name('ad')->where($where)->count();        }        echo intval($total);    } }