XML not correctly converted into objects by simplexml_load_string()

Question

I am trying to parse an XML response from the Amazon API in PHP via simplexml_load_string().

The XML i get looks like that:

<?xml version="1.0" encoding="UTF-8"?>
<GetMatchingProductForIdResponse xmlns="http://mws.amazonservices.com/schema/Products/2011-10-01">
   <GetMatchingProductForIdResult Id="xxx" IdType="SellerSKU" status="Success">
      <Products>
         <Product>
            <Identifiers>
               <MarketplaceASIN>
                  <MarketplaceId>xxxx</MarketplaceId>
                  <ASIN>xxx</ASIN>
               </MarketplaceASIN>
            </Identifiers>
            <AttributeSets>
               <ns2:ItemAttributes xmlns:ns2="http://mws.amazonservices.com/schema/Products/2011-10-01/default.xsd" xml:lang="de-DE">
                  <ns2:Binding>Elektronik</ns2:Binding>
                  <ns2:Brand>Panasonic</ns2:Brand>
                  <ns2:Feature>xx</ns2:Feature>
                  <ns2:Feature>xxx</ns2:Feature>
                  <ns2:Feature>xxx</ns2:Feature>
                  <ns2:Feature>xxx</ns2:Feature>
                  <ns2:Feature>xxx</ns2:Feature>
                  <ns2:Label>Panasonic</ns2:Label>
                  <ns2:Manufacturer>Panasonic</ns2:Manufacturer>
                  <ns2:PackageDimensions>
                     <ns2:Height Units="inches">xx</ns2:Height>
                     <ns2:Length Units="inches">xx</ns2:Length>
                     <ns2:Width Units="inches">xxx</ns2:Width>
                  </ns2:PackageDimensions>
                  <ns2:PartNumber>xxx</ns2:PartNumber>
                  <ns2:ProductGroup>Computer &amp; Zubehör</ns2:ProductGroup>
                  <ns2:ProductTypeName>COMPUTER_COMPONENT</ns2:ProductTypeName>
                  <ns2:Publisher>Panasonic</ns2:Publisher>
                  <ns2:SmallImage>
                     <ns2:URL>xxx.jpg</ns2:URL>
                     <ns2:Height Units="pixels">xx</ns2:Height>
                     <ns2:Width Units="pixels">xx</ns2:Width>
                  </ns2:SmallImage>
                  <ns2:Studio>Panasonic</ns2:Studio>
                  <ns2:Title>xxx</ns2:Title>
               </ns2:ItemAttributes>
            </AttributeSets>
            <Relationships />
            <SalesRankings />
         </Product>
      </Products>
   </GetMatchingProductForIdResult>
   <ResponseMetadata>
      <RequestId>xx</RequestId>
   </ResponseMetadata>
</GetMatchingProductForIdResponse>

My PHP code:

$response = $service->GetMatchingProductForId($request);  //making the call
$response = $response->toXML();
$response = simplexml_load_string($response);       
var_dump($response);

Unfortunatly the AttributeSets don't get converted into objects as you can see in the var_dump.

object(SimpleXMLElement)#9 (2) {
  ["GetMatchingProductForIdResult"]=>
  object(SimpleXMLElement)#4 (2) {
    ["@attributes"]=>
    array(3) {
      ["Id"]=>
      string(5) "xxx"
      ["IdType"]=>
      string(9) "SellerSKU"
      ["status"]=>
      string(7) "Success"
    }
    ["Products"]=>
    object(SimpleXMLElement)#14 (1) {
      ["Product"]=>
      object(SimpleXMLElement)#18 (4) {
        ["Identifiers"]=>
        object(SimpleXMLElement)#23 (1) {
          ["MarketplaceASIN"]=>
          object(SimpleXMLElement)#29 (2) {
            ["MarketplaceId"]=>
            string(14) "xxx"
            ["ASIN"]=>
            string(10) "xxxx"
          }
        }
        ["AttributeSets"]=>
        object(SimpleXMLElement)#37 (0) {
        }
        ["Relationships"]=>
        object(SimpleXMLElement)#28 (0) {
        }
        ["SalesRankings"]=>
        object(SimpleXMLElement)#26 (0) {
        }
      }
    }
  }
  ["ResponseMetadata"]=>
  object(SimpleXMLElement)#12 (1) {
    ["RequestId"]=>
    string(36) "xxx"
  }
}

Is something wrong with the XML?

user1369594 · Accepted Answer · 2014-09-02 13:55:31Z

6

Nuts to this, just used blunt force and it worked fine.

$response = str_replace("ns2:","",$response);

answered Sep 2, 2014 at 13:55

user1369594

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3 Comments

thealexbaron Over a year ago

This is better than my answer.

Salman Riyaz Over a year ago

Where did you gave this line?? please reply fast

Andy Borgmann Over a year ago

This is nuts just how well this works. I have no idea why or how or if this is best practice or not, but it just works so I am going with it.

Santa's helper · Accepted Answer · 2014-09-02 08:40:55Z

0

Sometimes var_dump() doesn't show all the elements (mostly it has too much elements or too much indent). its only about view, but your objects will be there, try to dump only AttributeSets self

answered Sep 2, 2014 at 8:40

Santa's helper

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5 Comments

user1369594 Over a year ago

still only getting an empty object object(SimpleXMLElement)#4 (0) { } if i try to access an attribute it returns NULL

Santa's helper Over a year ago

Can you please provide the php line of your AttributeSets var_dump. How do you reach that element?

Santa's helper Over a year ago

i think products is an array so you need to do loop or if its certain only one product you can use like: blabla->products[0]->AttributeSets

user1369594 Over a year ago

$response->GetMatchingProductForIdResult->Products->Product->AttributeSets returns object(SimpleXMLElement)#4 (0) { } as mentioned above. Maybe it's because of the different Namespace?

Santa's helper Over a year ago

i have just noticed that AttributeSets's elements has namespace prefix i am not so sure but it can couse your problem check this issue seems like xpath will be your solution

thealexbaron · Accepted Answer · 2015-06-18 17:17:50Z

You can call children on your SimpleXMLElement like

$xml = <<<EOF
<AttributeSets>
   <ns2:ItemAttributes xmlns:ns2="http://mws.amazonservices.com/schema/Products/2011-10-01/default.xsd" xml:lang="de-DE">
      <ns2:Binding>Elektronik</ns2:Binding>
      <ns2:Brand>Panasonic</ns2:Brand>
      <ns2:Feature>xx</ns2:Feature>
      <ns2:Feature>xxx</ns2:Feature>
      <ns2:Feature>xxx</ns2:Feature>
      <ns2:Feature>xxx</ns2:Feature>
      <ns2:Feature>xxx</ns2:Feature>
      <ns2:Label>Panasonic</ns2:Label>
      <ns2:Manufacturer>Panasonic</ns2:Manufacturer>
      <ns2:PackageDimensions>
         <ns2:Height Units="inches">xx</ns2:Height>
         <ns2:Length Units="inches">xx</ns2:Length>
         <ns2:Width Units="inches">xxx</ns2:Width>
      </ns2:PackageDimensions>
      <ns2:PartNumber>xxx</ns2:PartNumber>
      <ns2:ProductGroup>Computer &amp; Zubehör</ns2:ProductGroup>
      <ns2:ProductTypeName>COMPUTER_COMPONENT</ns2:ProductTypeName>
      <ns2:Publisher>Panasonic</ns2:Publisher>
      <ns2:SmallImage>
         <ns2:URL>xxx.jpg</ns2:URL>
         <ns2:Height Units="pixels">xx</ns2:Height>
         <ns2:Width Units="pixels">xx</ns2:Width>
      </ns2:SmallImage>
      <ns2:Studio>Panasonic</ns2:Studio>
      <ns2:Title>xxx</ns2:Title>
   </ns2:ItemAttributes>
</AttributeSets>
EOF;

$sxe = new SimpleXMLElement($xml);
$ns2 = $sxe->children('ns2', TRUE);

var_dump(count($ns2));

// prints int(1)

In the php docs: http://php.net/manual/en/simplexmlelement.children.php

public SimpleXMLElement SimpleXMLElement::children ([ string $ns [, bool $is_prefix = false ]] )

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