Incrementing values

[graham23s]

Hi Guys,

 

I am trying to show the user how many items they have in their shopping cart, i get the quantities from an amazon aws xml file, i tried:

 

<?php
$response = simplexml_load_file($url);

foreach($response->Cart as $item)
{
  $cartQY = $item->CartItems->CartItem->Quantity;

  $array = array($cartQY);
  
}
  print count($array);
?>

 

$cartQY = $item->CartItems->CartItem->Quantity; this reads each node and returns the quantity of each item in the cart, the way i have it now the foreach overwrites the quantity instead of adding to it, i'm not sure how to incrememnt the value.

 

any help would be appreciated

 

thanks guys

 

Graham

[rajivgonsalves]

a sample of your xml file will help.

[graham23s]

Hi Mate,

 

Here it is:

 

<?xml version="1.0" encoding="UTF-8" ?> 
- <CartGetResponse xmlns="http://webservices.amazon.com/AWSECommerceService/2009-10-01">
- <OperationRequest>
- <HTTPHeaders>
  <Header Name="UserAgent" Value="Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SU 3.23; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)" /> 
  </HTTPHeaders>
  <RequestId>0WQF79V8AA6Q5BDXZHQZ</RequestId> 
- <Arguments>
  <Argument Name="Service" Value="AWSECommerceService" /> 
  <Argument Name="Operation" Value="CartGet" /> 
  <Argument Name="Version" Value="2009-10-01" /> 
  <Argument Name="Timestamp" Value="2009-12-20T13:47:59Z" /> 
  <Argument Name="AssociateTag" Value="firschoishop-21" /> 
  <Argument Name="Signature" Value="=" /> 
  <Argument Name="HMAC" Value="" /> 
  <Argument Name="CartId" Value="277-8907303-9128266" /> 
  <Argument Name="AWSAccessKeyId" Value="AKIAI4FF5RJXRBLUF6FQ" /> 
  </Arguments>
  <RequestProcessingTime>0.0379190444946289</RequestProcessingTime> 
  </OperationRequest>
- <Cart>
- <Request>
  <IsValid>True</IsValid> 
- <CartGetRequest>
  <CartId>277-8907303-9128266</CartId> 
  <HMAC>5ETnH+45f5IRoHePIEoyT2XcEiw=</HMAC> 
  </CartGetRequest>
  </Request>
  <CartId>277-8907303-9128266</CartId> 
  <HMAC>5ETnH+45f5IRoHePIEoyT2XcEiw=</HMAC> 
  <URLEncodedHMAC>5ETnH%2B45f5IRoHePIEoyT2XcEiw%3D</URLEncodedHMAC> 
  <PurchaseURL>https://www.amazon.co.uk/gp/cart/aws-merge.html?cart-id=277-8907303-9128266%26associate-id=firschoishop-21%26hmac=5ETnH%2B45f5IRoHePIEoyT2XcEiw=%26SubscriptionId=AKIAI4FF5RJXRBLUF6FQ%26MergeCart=False</PurchaseURL> 
- <SubTotal>
  <Amount>2156</Amount> 
  <CurrencyCode>GBP</CurrencyCode> 
  <FormattedPrice>£21.56</FormattedPrice> 
  </SubTotal>
- <CartItems>
- <SubTotal>
  <Amount>2156</Amount> 
  <CurrencyCode>GBP</CurrencyCode> 
  <FormattedPrice>£21.56</FormattedPrice> 
  </SubTotal>
- <CartItem>
  <CartItemId>U3CJYU4J8670SU</CartItemId> 
  <ASIN>B0027UY836</ASIN> 
  <MerchantId>A3P5ROKL5A1OLE</MerchantId> 
  <SellerId>A3P5ROKL5A1OLE</SellerId> 
  <SellerNickname>Amazon.co.uk</SellerNickname> 
  <Quantity>1</Quantity> 
  <Title>The Haunting In Connecticut [DVD] [2009]</Title> 
  <ProductGroup>DVD</ProductGroup> 
- <Price>
  <Amount>1258</Amount> 
  <CurrencyCode>GBP</CurrencyCode> 
  <FormattedPrice>£12.58</FormattedPrice> 
  </Price>
- <ItemTotal>
  <Amount>1258</Amount> 
  <CurrencyCode>GBP</CurrencyCode> 
  <FormattedPrice>£12.58</FormattedPrice> 
  </ItemTotal>
  </CartItem>
- <CartItem>
  <CartItemId>U1PTXH2CW08KEJ</CartItemId> 
  <ASIN>B001PR1ZOC</ASIN> 
  <MerchantId>A3P5ROKL5A1OLE</MerchantId> 
  <SellerId>A3P5ROKL5A1OLE</SellerId> 
  <SellerNickname>Amazon.co.uk</SellerNickname> 
  <Quantity>1</Quantity> 
  <Title>Fast & Furious [DVD] [2009]</Title> 
  <ProductGroup>DVD</ProductGroup> 
- <Price>
  <Amount>898</Amount> 
  <CurrencyCode>GBP</CurrencyCode> 
  <FormattedPrice>£8.98</FormattedPrice> 
  </Price>
- <ItemTotal>
  <Amount>898</Amount> 
  <CurrencyCode>GBP</CurrencyCode> 
  <FormattedPrice>£8.98</FormattedPrice> 
  </ItemTotal>
  </CartItem>
  </CartItems>
  </Cart>
  </CartGetResponse>

 

I really just need to add up all the quantities.

 

thanks mate

 

Graham

[Buddski]

If you only want the quantities why not something like this.

<?php
$response = simplexml_load_file($url);
$count = 0;
foreach($response->Cart as $item)
{
  $count += $item->CartItems->CartItem->Quantity;
}
  print $count;
?>

or am I over simplifying it?

[rajivgonsalves]

Yes something like Buddski said with some modifications

<?php
$response = simplexml_load_file($url);
$count = 0;

foreach($response->Cart->CartItems->CartItem as $item)
{
  $count += $item->Quantity;
}
  print $count;
?>

 

[Buddski]

And because its better to learn where you went wrong than to just have the answer given..

The reason your code didnt work was because you were always overwriting $array with array($cartQY);

 

$array[] = array($cartQY);

would have been what you were after but using count() will just count how many items there are in the array and NOT the actual values in them Hope this helps ya a little more..

[graham23s]

Hi Guys,

 

Thanks a ton

 

Graham