视图：

    
    
     
    
       false, 'class' => 'product_id']); ?>    
       false, 'class' => 'product_price_id']); ?>    
       false, 'class' => 'qty']); ?>    
     
    

数组格式：

array ( 'product_id' => array ( 0 => '1', 1 => '16', ), 'product_price_id' => array ( 0 => '2', 1 => '', ), 'qty' => array ( 0 => '1', 1 => '1', ), )

循环：

public function validateItems(){    $productIdList = $this->items['product_id'];    $qtyList = $this->items['qty'];    $productPriceIds = $this->items['product_price_id'];    foreach ($productIdList as $i => $product_id)    {        $price = null;        $qty = $qtyList[$i];        $product_price_id = $productPriceIds[$i];        if(isset($product_price_id) && isset($qty) && $qty > 0)        {            $product = Product::findOne($product_id);            if(null != $product && $product->isOnline())            {                if($product->isAreaPrice())                {                    if(!isset($item['product_price_id']))                    {                        $this->addError('items', '编号为'.$i.'的商品地区未选择。');                    }                    else                    {                        /** @var ProductPrice $pp */                        $pp = ProductPrice::find()->where(['id' => $product_price_id, 'product_id' => $product_id])->one();                        if(null != $pp)                        {                            $price = $pp->price;                        }                    }                }                else                {                    $price = $product->price;                }                $this->products[] = [                    'product' => $product,                    'qty' => (int)$qty,                    'price' => $price                ];            }            else            {                $this->addError('items', '编号为'.$i.'的商品信息不正确。');            }        }        else        {            $this->addError('items', '编号为'.$i.'的商品信息不正确。');        }    }}