<?php
class books extends domDocument
{
function addBook($title, $author)
{
$titleElement = $this->createElement('title');
$titleElement->appendChild($this->createTextNode($title));
$authorElement = $this->createElement('author');
$authorElement->appendChild($this->createTextNode($author));
$bookElement = $this->createElement('book');
$bookElement->appendChild($titleElement);
$bookElement->appendChild($authorElement);
$this->documentElement->appendChild($bookElement);
}
}
$dom = new books();
$xml = <<<EOM
<?xml version='1.0' ?>
<books>
<book>
<title>The Grapes of Wrath</title>
<author>John Steinbeck</author>
</book> <book>
<title>The Pearl</title> <author>John Steinbeck</author>
</book></books>
EOM;
$dom->loadXML($xml);
$dom->addBook('PHP de Luxe', 'Richard Samar, Christian Stocker');
print $dom->saveXML();