DOMDocument parsing right way - php

Question

I have an xml from an exernal server like this:
<?xml version="1.0" encoding="UTF-8"?>
<Response ResponseReference="200002">
<ResponseDetails Language="en">
<SearchCurrencyResponse>
<CurrencyDetails>
<Currency Code="ARS"><![CDATA[Argentine Peso]]></Currency>
<Currency Code="AUD"><![CDATA[Australian Dollar]]></Currency>
</CurrencyDetails>
</SearchCurrencyResponse>
</ResponseDetails>
</Response>
What is the right way to take all currency (code and text inside)?
I have tried in this way and works but is there a way to make it more fast? Because I can have thousands of elements:
$searchCurrencyReponseElements = $xpath->query( 'ResponseDetails/SearchCurrencyResponse', $responseElement );
foreach( $searchCurrencyReponseElements as $searchCurrencyReponseElement ) {
$CurrencyElements = $xpath->query( 'CurrencyDetails/Currency', $searchCurrencyReponseElement );
foreach( $CurrencyElements as $CurrencyElement ) {
echo '<p>Currency: '.$CurrencyElement->textContent.'</p>';
}
}
And how to take the code attribute? Thanks

Answer 1

If you need to select all nodes by a specific node name then use DOMDocument::getElementsByTagName(). Try this:
$doc = new DOMDocument();
$doc->load($path);
// get all Currency nodes
$currencyNodes = $doc->getElementsByTagName('Currency');
// iterate over them
foreach($currencyNodes as $node) {
echo $node->getAttribute('Code') . ' ' . $node->nodeValue . PHP_EOL;
}