Parsing a XML response - php

Question

I have been working on the Saia Carrier API and have it giving me values albeit they are not very appealing. I would like to parse the values and put them into variables so I can display them neatly in a table.
Here is the code:
<?php
$postdata = '<?xml version="1.0" encoding="utf-8"?>
<Create>
<UserID>XXX</UserID>
<Password>XXX</Password>
<TestMode>Y</TestMode>
<BillingTerms>Prepaid</BillingTerms>
<AccountNumber>XXX</AccountNumber>
<Application>Outbound</Application>
<OriginZipcode>44483</OriginZipcode>
<DestinationZipcode>90077</DestinationZipcode>
<Details>
<DetailItem>
<Weight>100</Weight>
<Class>85</Class>
</DetailItem>
</Details>
</Create>';
$url = "http://www.saiasecure.com/webservice/ratequote/xml.aspx";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS,$postdata);
curl_setopt($ch, CURLOPT_HTTPHEADER,array('Content-type: text/xml'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
$info = curl_getinfo($ch);
curl_close ($ch);
$status = $info['http_code'];
echo $status;
echo '<pre>';
print_r($response);
?>

Answer 1

I got it.
Just added:
$xml = simplexml_load_string($response);
and changed:
print_r($response);
to:
print_r($xml);

Answer 2

I've always used PHP's SimpleXML library: http://php.net/manual/en/book.simplexml.php
This creates a pretty basic object that is easy to use and traverse.
This is an example of traversing with the children() function from the site: http://www.php.net/manual/en/simplexmlelement.children.php
<?php
$xml = new SimpleXMLElement(
'<person>
<child role="son">
<child role="daughter"/>
</child>
<child role="daughter">
<child role="son">
<child role="son"/>
</child>
</child>
</person>');
foreach ($xml->children() as $second_gen) {
echo ' The person begot a ' . $second_gen['role'];
foreach ($second_gen->children() as $third_gen) {
echo ' who begot a ' . $third_gen['role'] . ';';
foreach ($third_gen->children() as $fourth_gen) {
echo ' and that ' . $third_gen['role'] .
' begot a ' . $fourth_gen['role'];
}
}
}
?>
You can also retrieve attributes via the attributes() function: http://www.php.net/manual/en/simplexmlelement.attributes.php
<?php
$string = <<<XML
<a>
<foo name="one" game="lonely">1</foo>
</a>
XML;
$xml = simplexml_load_string($string);
foreach($xml->foo[0]->attributes() as $a => $b) {
echo $a,'="',$b,"\"\n";
}
?>