ecshop商品页显示累计销售数量，显示商品销售总数量

/**
* 调用某商品的累积售出
*/
function insert_goods_sells($arr)
{
 $sql = 'SELECT SUM(goods_number) AS number ' .
    ' FROM ' . $GLOBALS['ecs']->table('order_goods') ." AS og , " . $GLOBALS['ecs']->table('order_info') ." AS  o ".
    " WHERE og.order_id = o.order_id and og.goods_id=".$arr['goods_id'];
 $row = $GLOBALS['db']->GetRow($sql);
 if ($row)
 {
  $number = intval($row['number']);
 }
 else
 {
  $number = 0;
 }
  return $number;
}

<strong>{$lang.goods_click_count}：</strong>{$goods.click_count}

<strong>累计售出：</strong>{insert name='goods_sells' goods_id=$id}{$goods.measure_unit}