Reading XML file with namespaces - php

Question

I need som help reading a XML that has namespaces.
I can read file with out any namepaces but not with namespaces..
XML sample:
<?xml version="1.0" encoding="utf-8"?>
<OrderResponse xmlns:cac="urn:basic:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" xmlns:xsi="http://www.w3.org/" xmlns:cbc="urn:basic:names:specification:ubl:schema:xsd:BasicComponents-2" xmlns="urn:basic:names:specification:ubl:schema:xsd:OrderResponse-2">
<cbc:UBLVersionID>2.1</cbc:UBLVersionID>
<cbc:AccountingCostCode>TESTER TEST</cbc:AccountingCostCode>
<cac:OrderReference>
<cbc:ID>100067010</cbc:ID>
<cbc:IssueDate>2016-06-15</cbc:IssueDate>
<cbc:OrderTypeCode>EDI</cbc:OrderTypeCode>
</cac:OrderReference>
</OrderResponse>
I need to get the value of the ..
Im trying do it with DomDocument.
Here is my code:
function SearchXMLID($xml){
var_dump($xml);
$doc = new DOMDocument();
$doc->load($xml);
$id = $doc->getElementsByTagNameNS('urn:basic:names:specification:ubl:schema:xsd:CommonAggregateComponents-2','cbc:ID');
foreach($id as $i){
echo "<pre>";var_dump('NS',$i->nodeValue,PHP_EOL);"</pre>";
}
}
$files = glob('dataXMl/*xml');
echo "<pre>";var_dump($files,PHP_EOL);"</pre>";
foreach($files as $f){
SearchXMLID($f);
}
This code works but is getting all namespaces with 'cbc:' and stores the in a string..
array(1) {
[0]=>
string(17) "dataXMl/test1.xml"
}
string(1) "
"
string(17) "dataXMl/test1.xml"
string(2) "NS"
string(40) "
100000050
2016-06-15
EDI
"
string(1) "
"
It gets all tags with the namespace 'cbc'.. but i want to get the tag 'cbc:ID' only.
What am i doing wrong?

Answer 1

I'm no expert with php coding but my gut tells me that both of your parameters for getElementsByTagNameNS are wrong.
Try this:
$id = $doc->getElementsByTagNameNS('urn:basic:names:specification:ubl:schema:xsd:BasicComponents-2','ID');
i.e. use the correct namespace-uri: "urn:basic:names:specification:ubl:schema:xsd:BasicComponents-2"
and drop the cbc prefix