用php获取xml节点

Question

Im attempting to echo/assign a variable to the contents of the node "code" which is inside status;

I can get request-id just fine...

Any ideas people?

<?
$responseXML = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<payment xmlns="http://www.example.com" self="http://www.example.com">
  <merchant-account-id ref="http://www.example.com">0000</merchant-account-id>
  <transaction-id>0000</transaction-id>
  <request-id>0000</request-id>
  <transaction-type>auth</transaction-type>
  <transaction-state>success</transaction-state>
  <completion-time-stamp>2015-12-28T17:39:25.000Z</completion-time-stamp>
  <statuses>
    <status code="201.0000" description="3d-acquirer:The resource was successfully created." severity="information"/>
  </statuses>
  <avs-code>P</avs-code>
  <requested-amount currency="GBP">0.01</requested-amount>
  <account-holder>
    <first-name>test</first-name>
    <last-name>test</last-name>
    <email>[e-mail]</email>
    <phone>00000000000</phone>
    <address>
    <street1>test</street1>
    <city>test test</city>
    <state>test</state>
    <country>GB</country>
    </address>
  </account-holder>
  <card-token>
    <token-id>000</token-id>
    <masked-account-number>000000******0000</masked-account-number>
  </card-token>
  <ip-address>192.168.0.1</ip-address>
  <descriptor></descriptor>
  <authorization-code>000000</authorization-code>
  <api-id>000-000</api-id>
</payment>';

$doc = new DOMDocument;
$doc->loadXML($responseXML);

echo $doc->getElementsByTagName('request-id')->item(0)->nodeValue;
echo $doc->getElementsByTagName('status code')->item(0)->nodeValue;



?>

I've tried simplexml looad string, but pulling hair out with this one, can anybody shed some light, speed of getting this info out in one process is quite important so not to stress the webserver out!

Many thanks.

</div>

Answer 1

As code is an attribute of xml tag status, doing

getElementsByTagName('status code')

is wrong.

There's a special method for getting attribute value getAttribute:

echo $doc->getElementsByTagName('status')->item(0)->getAttribute('code');