XML未通过simplexml_load_string（）正确转换为对象

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?

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

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

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

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 ]] )