I am sending a request to get product info to Amazon and I am getting a response from them that is formatted in XML - it looks like this:
<?xml version="1.0"?>
<GetMatchingProductForIdResponse xmlns="http://ift.tt/1iBZrs1">
<GetMatchingProductForIdResult Id="3U-R7EP-QODZ" IdType="SellerSKU" status="Success">
<Products>
<Product>
<Identifiers>
<MarketplaceASIN>
<MarketplaceId>ATVPDKIKX0DER</MarketplaceId>
<ASIN>B0002DV7Z2</ASIN>
</MarketplaceASIN>
</Identifiers>
<AttributeSets>
<ns2:ItemAttributes xmlns:ns2="http://ift.tt/1iBZq7r" xml:lang="en-US">
<ns2:Binding>Electronics</ns2:Binding>
<ns2:Brand>Pioneer</ns2:Brand>
<ns2:Color>Black</ns2:Color>
<ns2:Feature>Whether a DJ, studio musician, sound engineer or just an avid music listener, the HDJ-1000 is the answer to all of your headphone needs.</ns2:Feature>
<ns2:Feature>Large diameter speaker units.</ns2:Feature>
<ns2:Feature>Folding housing with universal joints.</ns2:Feature>
<ns2:Feature>Stereo/Mono selector switch allows mix of left and right channel signals for single ear monitoring.</ns2:Feature>
<ns2:Feature>Removable 1/4" jack reveals mini plug for flexible connections, includes carrying case.</ns2:Feature>
<ns2:ItemDimensions>
<ns2:Height Units="inches">11.50</ns2:Height>
<ns2:Length Units="inches">13.00</ns2:Length>
<ns2:Width Units="inches">12.60</ns2:Width>
<ns2:Weight Units="pounds">0.60</ns2:Weight>
</ns2:ItemDimensions>
<ns2:IsAutographed>false</ns2:IsAutographed>
<ns2:IsMemorabilia>false</ns2:IsMemorabilia>
<ns2:Label>Pioneer Pro DJ</ns2:Label>
<ns2:ListPrice>
<ns2:Amount>200.00</ns2:Amount>
<ns2:CurrencyCode>USD</ns2:CurrencyCode>
</ns2:ListPrice>
<ns2:Manufacturer>Pioneer Pro DJ</ns2:Manufacturer>
<ns2:Model>HDJ-1000</ns2:Model>
<ns2:NumberOfItems>1</ns2:NumberOfItems>
<ns2:PackageDimensions>
<ns2:Height Units="inches">4.20</ns2:Height>
<ns2:Length Units="inches">10.00</ns2:Length>
<ns2:Width Units="inches">9.50</ns2:Width>
<ns2:Weight Units="pounds">1.30</ns2:Weight>
</ns2:PackageDimensions>
<ns2:PackageQuantity>1</ns2:PackageQuantity>
<ns2:PartNumber>HDJ-1000</ns2:PartNumber>
<ns2:ProductGroup>Musical Instruments</ns2:ProductGroup>
<ns2:ProductTypeName>SOUND_AND_RECORDING_EQUIPMENT</ns2:ProductTypeName>
<ns2:ProductTypeSubcategory>26705100</ns2:ProductTypeSubcategory>
<ns2:Publisher>Pioneer Pro DJ</ns2:Publisher>
<ns2:ReleaseDate>2008-12-08</ns2:ReleaseDate>
<ns2:SmallImage>
<ns2:URL>http://ift.tt/1qPKLb8;
<ns2:Height Units="pixels">75</ns2:Height>
<ns2:Width Units="pixels">75</ns2:Width>
</ns2:SmallImage>
<ns2:Studio>Pioneer Pro DJ</ns2:Studio>
<ns2:Title>Pioneer HDJ-1000 DJ Headphones</ns2:Title>
<ns2:Warranty>1 Year Exchange</ns2:Warranty>
</ns2:ItemAttributes>
</AttributeSets>
<Relationships>
<VariationParent xmlns="http://ift.tt/1iBZrs1">
<Identifiers>
<MarketplaceASIN>
<MarketplaceId>ATVPDKIKX0DER</MarketplaceId>
<ASIN>B0074L8U64</ASIN>
</MarketplaceASIN>
</Identifiers>
</VariationParent>
</Relationships>
<SalesRankings>
<SalesRank>
<ProductCategoryId>musical_instruments_display_on_website</ProductCategoryId>
<Rank>28094</Rank>
</SalesRank>
</SalesRankings>
</Product>
</Products>
</GetMatchingProductForIdResult>
<GetMatchingProductForIdResult Id="86-CK3P-PHK6" IdType="SellerSKU" status="Success">
<Products>
<Product>
<Identifiers>
<MarketplaceASIN>
<MarketplaceId>ATVPDKIKX0DER</MarketplaceId>
<ASIN>0061785679</ASIN>
</MarketplaceASIN>
</Identifiers>
<AttributeSets>
<ns2:ItemAttributes xmlns:ns2="http://ift.tt/1iBZq7r" xml:lang="en-US">
<ns2:Author>Rollins, James</ns2:Author>
<ns2:Binding>Mass Market Paperback</ns2:Binding>
<ns2:Brand>Harper</ns2:Brand>
<ns2:Edition>Reprint</ns2:Edition>
<ns2:Feature>Great product!</ns2:Feature>
<ns2:ItemDimensions>
<ns2:Height Units="inches">1.90</ns2:Height>
<ns2:Length Units="inches">7.20</ns2:Length>
<ns2:Width Units="inches">4.20</ns2:Width>
<ns2:Weight Units="pounds">0.70</ns2:Weight>
</ns2:ItemDimensions>
<ns2:Label>Harper</ns2:Label>
<ns2:Languages>
<ns2:Language>
<ns2:Name>english</ns2:Name>
<ns2:Type>Unknown</ns2:Type>
</ns2:Language>
<ns2:Language>
<ns2:Name>english</ns2:Name>
<ns2:Type>Original Language</ns2:Type>
</ns2:Language>
<ns2:Language>
<ns2:Name>english</ns2:Name>
<ns2:Type>Published</ns2:Type>
</ns2:Language>
</ns2:Languages>
<ns2:ListPrice>
<ns2:Amount>9.99</ns2:Amount>
<ns2:CurrencyCode>USD</ns2:CurrencyCode>
</ns2:ListPrice>
<ns2:Manufacturer>Harper</ns2:Manufacturer>
<ns2:NumberOfItems>1</ns2:NumberOfItems>
<ns2:NumberOfPages>576</ns2:NumberOfPages>
<ns2:PackageDimensions>
<ns2:Height Units="inches">1.70</ns2:Height>
<ns2:Length Units="inches">7.40</ns2:Length>
<ns2:Width Units="inches">4.10</ns2:Width>
<ns2:Weight Units="pounds">0.70</ns2:Weight>
</ns2:PackageDimensions>
<ns2:ProductGroup>Book</ns2:ProductGroup>
<ns2:ProductTypeName>ABIS_BOOK</ns2:ProductTypeName>
<ns2:PublicationDate>2014-01-28</ns2:PublicationDate>
<ns2:Publisher>Harper</ns2:Publisher>
<ns2:ReleaseDate>2014-01-28</ns2:ReleaseDate>
<ns2:SmallImage>
<ns2:URL>http://ift.tt/XlTZAw;
<ns2:Height Units="pixels">75</ns2:Height>
<ns2:Width Units="pixels">42</ns2:Width>
</ns2:SmallImage>
<ns2:Studio>Harper</ns2:Studio>
<ns2:Title>The Eye of God (Sigma Force)</ns2:Title>
</ns2:ItemAttributes>
</AttributeSets>
<Relationships/>
<SalesRankings>
<SalesRank>
<ProductCategoryId>book_display_on_website</ProductCategoryId>
<Rank>10083</Rank>
</SalesRank>
</SalesRankings>
</Product>
</Products>
</GetMatchingProductForIdResult>
<GetMatchingProductForIdResult Id="NX-USS1-UXRY" IdType="SellerSKU" status="Success">
<Products>
<Product>
<Identifiers>
<MarketplaceASIN>
<MarketplaceId>ATVPDKIKX0DER</MarketplaceId>
<ASIN>0375705244</ASIN>
</MarketplaceASIN>
</Identifiers>
<AttributeSets>
<ns2:ItemAttributes xmlns:ns2="http://ift.tt/1iBZq7r" xml:lang="en-US">
<ns2:Author>Ellis, Joseph J.</ns2:Author>
<ns2:Binding>Paperback</ns2:Binding>
<ns2:Brand>Vintage</ns2:Brand>
<ns2:Feature>Great product!</ns2:Feature>
<ns2:ItemDimensions>
<ns2:Height Units="inches">0.65</ns2:Height>
<ns2:Length Units="inches">7.84</ns2:Length>
<ns2:Width Units="inches">5.48</ns2:Width>
<ns2:Weight Units="pounds">0.51</ns2:Weight>
</ns2:ItemDimensions>
<ns2:Label>Vintage</ns2:Label>
<ns2:Languages>
<ns2:Language>
<ns2:Name>english</ns2:Name>
<ns2:Type>Unknown</ns2:Type>
</ns2:Language>
<ns2:Language>
<ns2:Name>english</ns2:Name>
<ns2:Type>Original Language</ns2:Type>
</ns2:Language>
<ns2:Language>
<ns2:Name>english</ns2:Name>
<ns2:Type>Published</ns2:Type>
</ns2:Language>
</ns2:Languages>
<ns2:ListPrice>
<ns2:Amount>15.95</ns2:Amount>
<ns2:CurrencyCode>USD</ns2:CurrencyCode>
</ns2:ListPrice>
<ns2:Manufacturer>Vintage</ns2:Manufacturer>
<ns2:NumberOfItems>1</ns2:NumberOfItems>
<ns2:NumberOfPages>304</ns2:NumberOfPages>
<ns2:PackageDimensions>
<ns2:Height Units="inches">1.10</ns2:Height>
<ns2:Length Units="inches">7.70</ns2:Length>
<ns2:Width Units="inches">5.10</ns2:Width>
<ns2:Weight Units="pounds">0.50</ns2:Weight>
</ns2:PackageDimensions>
<ns2:PackageQuantity>1</ns2:PackageQuantity>
<ns2:PartNumber>9780375705243</ns2:PartNumber>
<ns2:ProductGroup>Book</ns2:ProductGroup>
<ns2:ProductTypeName>ABIS_BOOK</ns2:ProductTypeName>
<ns2:PublicationDate>2002-02-05</ns2:PublicationDate>
<ns2:Publisher>Vintage</ns2:Publisher>
<ns2:ReleaseDate>2002-02-05</ns2:ReleaseDate>
<ns2:SmallImage>
<ns2:URL>http://ift.tt/1qPKLba;
<ns2:Height Units="pixels">75</ns2:Height>
<ns2:Width Units="pixels">49</ns2:Width>
</ns2:SmallImage>
<ns2:Studio>Vintage</ns2:Studio>
<ns2:Title>Founding Brothers: The Revolutionary Generation</ns2:Title>
</ns2:ItemAttributes>
</AttributeSets>
<Relationships/>
<SalesRankings>
<SalesRank>
<ProductCategoryId>book_display_on_website</ProductCategoryId>
<Rank>3269</Rank>
</SalesRank>
<SalesRank>
<ProductCategoryId>9681303011</ProductCategoryId>
<Rank>4</Rank>
</SalesRank>
<SalesRank>
<ProductCategoryId>4871</ProductCategoryId>
<Rank>7</Rank>
</SalesRank>
<SalesRank>
<ProductCategoryId>11086</ProductCategoryId>
<Rank>16</Rank>
</SalesRank>
</SalesRankings>
</Product>
</Products>
</GetMatchingProductForIdResult>
<GetMatchingProductForIdResult Id="VB-GNYY-PMZS" IdType="SellerSKU" status="Success">
<Products>
<Product>
<Identifiers>
<MarketplaceASIN>
<MarketplaceId>ATVPDKIKX0DER</MarketplaceId>
<ASIN>B00DQAPJSY</ASIN>
</MarketplaceASIN>
</Identifiers>
<AttributeSets>
<ns2:ItemAttributes xmlns:ns2="http://ift.tt/1iBZq7r" xml:lang="en-US">
<ns2:Binding>Personal Computers</ns2:Binding>
<ns2:Brand>JBL</ns2:Brand>
<ns2:Color>Red</ns2:Color>
<ns2:Feature>Versatile, portable design</ns2:Feature>
<ns2:Feature>Five-hour, Li-ion rechargeable battery</ns2:Feature>
<ns2:Feature>Built-in microphone & call answer button for mobile devices</ns2:Feature>
<ns2:Label>JBL</ns2:Label>
<ns2:ListPrice>
<ns2:Amount>119.95</ns2:Amount>
<ns2:CurrencyCode>USD</ns2:CurrencyCode>
</ns2:ListPrice>
<ns2:Manufacturer>JBL</ns2:Manufacturer>
<ns2:MediaType>MP3</ns2:MediaType>
<ns2:Model>JBLFLIPREDAM</ns2:Model>
<ns2:PackageDimensions>
<ns2:Height Units="inches">2.90</ns2:Height>
<ns2:Length Units="inches">7.50</ns2:Length>
<ns2:Width Units="inches">7.10</ns2:Width>
<ns2:Weight Units="pounds">1.70</ns2:Weight>
</ns2:PackageDimensions>
<ns2:PackageQuantity>1</ns2:PackageQuantity>
<ns2:PartNumber>JBLFLIPREDAM</ns2:PartNumber>
<ns2:ProductGroup>Network Media Player</ns2:ProductGroup>
<ns2:ProductTypeName>PORTABLE_AUDIO</ns2:ProductTypeName>
<ns2:Publisher>JBL</ns2:Publisher>
<ns2:SmallImage>
<ns2:URL>http://ift.tt/XlTZAz;
<ns2:Height Units="pixels">65</ns2:Height>
<ns2:Width Units="pixels">75</ns2:Width>
</ns2:SmallImage>
<ns2:Studio>JBL</ns2:Studio>
<ns2:Title>JBL Flip Wireless Bluetooth Speaker (Red)</ns2:Title>
</ns2:ItemAttributes>
</AttributeSets>
<Relationships/>
<SalesRankings>
<SalesRank>
<ProductCategoryId>wireless_display_on_website</ProductCategoryId>
<Rank>17155</Rank>
</SalesRank>
</SalesRankings>
</Product>
</Products>
</GetMatchingProductForIdResult>
<ResponseMetadata>
<RequestId>c09070bd-cc9b-485b-9df0-e7ff24b014b5</RequestId>
</ResponseMetadata>
</GetMatchingProductForIdResponse>
ResponseHeaderMetadata: RequestId: c09070bd-cc9b-485b-9df0-e7ff24b014b5, ResponseContext: kTgQHamo26t53ZIXhXJTA7jfRyqcib2iqO1Wf/3khcqgfhHFseHa9JYrX8Dlzs9OrGixmPIsCxuZ jSUoBV3RLw==,YR44XTRP1f51djG65oaAWhdNHw0+6V32WmJmZoqkSTeUVHYvq88nOBfaE6EgXq3XTR9WAss6d97r gR/TimYXbQ==, Timestamp: 2014-09-15T05:23:50.364Z, Quota Max: 17772.0, Quota Remaining: 17772.0, Quota Resets At: 2014-09-15T05:25:00.000Z
I am trying to get the weight of each item (Product) in the response, which can be found at GetMatchingProductForIdResult/Products/Product/AttributeSets/ns2:ItemAttributes/ns2:ItemDimensions/ns2:Weight if you start at the root element of the node. I am trying to use xpath like this:
$dozy=new DOMDocument();
$dozy->loadXML($response->toXML());
$dozy->preserveWhiteSpace = false;
$dozy->formatOutput = true;
$xpathy = new DOMXpath($dozy);
$xpathy->registerNamespace('ns2', 'http://ift.tt/1qPKLbe');
$weighter = $xpathy->query('//GetMatchingProductForIdResult/Products/Product/AttributeSets/ns2:ItemAttributes/ns2:ItemDimensions/ns2:Weight');
However when I go to reference what I got with:
echo $weighter->item(0)->nodeValue;
I get an error saying:
Trying to get property of non-object.
I think this is happening because $weighter is null (it isn't getting anything stored in it) so the item function isn't working on it.
Any help for how to target the ns2:Weight node would be greatly appreciated. Thanks.
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