Question

我正在开发一个电子商务网站，当用户第一次将产品添加到购物篮时，我收到以下错误，

遇到PHP错误


严重性：注意

消息：未定义的索引：orderDetails

文件名：libraries / MY_Cart.php

行号：59 PHP错误   遇到

严重性：警告

消息：无法修改标头   信息 - 已经发送的标题   （输出始于   /var/www/vhosts/akulaliving.com/httpdocs/CI-1.7.3/libraries/Exceptions.php:166）

文件名：libraries / Session.php

行号：662

使用以下代码将产品添加到购物篮

if ($this->input->post('btnAddToBag'))
        {

            $derivativeId = $this->input->post('selDerivative-1');
            $quantity = $this->input->post('selQuantity');
            $derivative = $this->Product_model->GetProducts(array('pdId' => $derivativeId), 'small');

            // Add item to shopping bag.
            $attributes = $this->Product_model->GetProductDerivatives(array('pdId' => $derivativeId));
            $this->Checkout_model->AddProduct($derivative, $attributes, $quantity);
            $this->data['message'] = 'Item added to Shopping Bag.';

            // Update Delivery Price
            $this->Checkout_model->updateDelivery(49);

            //get the bag details
            $this->data['items'] = $this->Checkout_model->GetProducts();        
        }

被调用的模型函数是

function AddProduct($derivative, $attributes, $quantity)
{
    $data = array(
       'id'         => $derivative->pdId,
       'qty'        => $quantity,
       'price'      => ($derivative->productSavingType == 'none' ? $derivative->productPrice : $derivative->productSavingPrice),
       'name'       => $derivative->productTitle,
       'attributes' => $attributes['attributeValues'],
       'refNo'      => $derivative->pdRefNo,
       'productId'  => $derivative->productId,
       'set'        => $derivative->productIsSet,
       'hasImage'   => $derivative->hasImage,
       'imageUrl'   => $derivative->imageUrl,
       'imageAlt'   => $derivative->imageAlt,
       'stockLevel' => $derivative->pdStockLevel,
       'leadTime'   => $derivative->pdLeadTime
    );

    $data['nonDiscountedPrice'] = $data['price'];
    if ($derivative->productSavingType == 'end-of-season')
    {
        $data['nonDiscountedPrice'] = $derivative->productPrice;
    }

    $this->cart->insert($data);
}

错误抱怨的代码如下，

function _insert($items=array())
{
    if (isset($items['options']) AND count($items['options']) > 0)
    {
        $rowid = md5($items['id'].implode('', $items['options']));
    }
    else
    {
        $rowid = md5($items['id']);
    }

    if (isset($this->_cart_contents[$rowid]))
    {
        if (!isset($items['qty']))
        {
            return FALSE;
        }

        // Already Exists, we need to update the total for this item
        $new_qty = $items['qty'];
        $items['qty'] = $items['qty'] + $this->_cart_contents[$rowid]['qty'];

        $items['rowid'] = $rowid;

        if ($this->_update($items))
        {
            return TRUE;
        }
        return FALSE;
    }

    // Doesn't exist, we need to insert this item.
    if (parent::_insert($items))
    {
        // Update our total.
        if (isset($this->_cart_contents[$rowid]))
        {
            $this->real_total_items += $this->_cart_contents[$rowid]['qty'];
            if ($this->_cart_contents['orderDetails']['discount'] > 0)
            {
                $this->_cart_contents[$rowid]['price'] = $this->_cart_contents[$rowid]['nonDiscountedPrice'];
                $this->_save_cart();
            }
        }
        return TRUE;
    }
    return FALSE;
}

Answer 1

的Joomla？这是$this->_cart_contents['orderDetails']在使用之前未定义的通知。您可以事先定义它，或关闭通知，它应该消失。

Answer 2

我打赌你的PHP输出了NOTICE及其导致会话头已经发送错误。

在php.ini中找到error_reporting行并将其更改为

error_reporting = E_ALL & ~E_NOTICE

重新启动您的apache实例，看看是否能解决问题。

Answer 3

您可能已将服务器配置设置为显示E_NOTICE的PHP错误（这对于开发来说是正常的）。因为生成了E_NOTICE（MY_Cart.php），所以首先回显给浏览器。并且由于已经存在浏览器输出，因此会出现警告“无法修改标头信息”（libraries / Session.php）。可能是因为它正在执行header（）函数或类似的东西。

您可以通过修复E_NOTICE的原因（忘记检查'orderDetails'键吗？）或通过在代码开头设置error_reporting(E_ALL & ~E_NOTICE)来隐藏E_NOTICE来解决这个问题。

Answer 4

在使用此变量之前，您必须为变量定义默认值

解决此警告。

Answer 5

if (**$this->_cart_contents['orderDetails']['discount'] > 0**)
        {
            $this->_cart_contents[$rowid]['price'] = $this->_cart_contents[$rowid]['nonDiscountedPrice'];
            $this->_save_cart();
        }

CI抛出一条通知消息，因为:: _ cart_contents ['orderDetails'] var不存在。

如果您不想更改php.ini的错误设置，可以按照以下方式进行更改并尝试：

if (isset($this->_cart_contents['orderDetails']['discount'])&& ($this->_cart_contents['orderDetails']['discount']>0))

PHP帮助，可能会话错误？

5 个答案: