Parsing XML in PHP returns SimpleXMLElement Object. What next?

PHP
1

I am trying to get data from library of congress book search to get information like, title, creator, publisher etc. Below is the php and the response I get. I am stuck at [recordData] => SimpleXMLElement Object. How do I look through this to get the information i need? print_r ($yr->records->record->recordData) gives me the response “SimpleXMLElement Object()” and nothing else.

Here is the xml file
http://z3950.loc.gov:7090/voyager?version=1.1&operation=searchRetrieve&query=dinosaur&maximumRecords=1&recordSchema=dc

PHP


$entry=simplexml_load_file('http://z3950.loc.gov:7090/voyager?version=1.1&operation=searchRetrieve&query=dinosaur&maximumRecords=1&recordSchema=dc');

$namespaces = $entry->getNameSpaces(true);
$yr = $entry->children($namespaces['zs']);
print_r ($yr);

I get this response back. How do I get into the recordData part?

SimpleXMLElement Object
(
    [version] => 1.1
    [numberOfRecords] => 2238
    [records] => SimpleXMLElement Object
        (
            [record] => SimpleXMLElement Object
                (
                    [recordSchema] => info:srw/schema/1/dc-v1.1
                    [recordPacking] => xml
                    [recordData] => SimpleXMLElement Object
                        (
                        )

                    [recordPosition] => 1
                )

        )

)
2

Step one is to read through some basic examples of using SimpleXML – http://php.net/simplexml.examples-basic