XML Help

[Skeets]

hi all, the following code works perfect (the xml is loacted at the
bottom of this post):

$doc = new DOMDocument;

// We don't want to bother with white spaces
$doc->preserveWhiteSpace = false;

$doc->Load('/book.xml');

$xpath = new DOMXPath($doc);

$query1 = '//book/title';

$entry1 = $xpath->query($query1);

foreach ($entry1 as $entry) {
echo "Found {$entry->nodeValue}," .
" by {$entry->nodeValue}<br />";
}

however, i don't know how to get a single value.

echo "Found {$entry1->nodeValue};

echo "Found {$entry1[0]->nodeValue};

don't work

i'm trying to use XPath and XML to nail down the value in the
book/title path ("My lists")

what am i doing worng?

tia...

xml:

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
]>
<book id="listing">
<title>My lists</title>
<chapter id="books">
<title>My books</title>
<para>
<informaltable>
<tgroup cols="4">
<thead>
<row>
<entry>Title</entry>
<entry>Author</entry>
<entry>Language</entry>
<entry>ISBN</entry>
</row>
</thead>
<tbody>
<row>
<entry>The Grapes of Wrath</entry>
<entry>John Steinbeck</entry>
<entry>en</entry>
<entry>0140186409</entry>
</row>
<row>
<entry>The Pearl</entry>
<entry>John Steinbeck</entry>
<entry>en</entry>
<entry>014017737X</entry>
</row>
<row>
<entry>Samarcande</entry>
<entry>Amine Maalouf</entry>
<entry>fr</entry>
<entry>2253051209</entry>
</row>
<!-- TODO: I have a lot of remaining books to add.. -->
</tbody>
</tgroup>
</informaltable>
</para>
</chapter>
</book>