How to get value of xml element - php

Question

I need to retrieve the value of the value of "TotalBooks" from an xml file that is structured like the example below.
I can get the equivalent of the "MatchesFound" value by doing a count of "book" and I can successfully get the information for each book.
However, I cannot get the actual value shown in the xml file for "MatchesFound", "TotalBooks", and "Page".
I'm using php with simplexml_load_file. Any help I can get is appreciated. Thanks.
<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
<MatchesFound>2</MatchesFound>
<TotalBooks>563</TotalBooks>
<Page>1</Page>
<book>
<title>Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price currency="USD">30.00</price>
</book>
<book>
<title>Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price currency="USD">29.99</price>
</book>
</bookstore>

Answer 1

$xml = new SimpleXMLElement($xmlString);
echo $xml->TotalBooks;

Answer 2

Using xpath :
<?php
$string = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
<MatchesFound>2</MatchesFound>
<TotalBooks>563</TotalBooks>
<Page>1</Page>
<book>
<title>Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price currency="USD">30.00</price>
</book>
<book>
<title>Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price currency="USD">29.99</price>
</book>
</bookstore>
XML;
$xml = new SimpleXMLElement($string);
$result = $xml->xpath('//TotalBooks');
while(list( , $node) = each($result)) {
echo "$node\n";
}
?>
See http://php.net/manual/en/simplexmlelement.xpath.php