php解析xml示例

<!-- xml 格式
<books>
<book id='1001'>
<author>andylin</author>
<title>c language</title>
<publisher id="aaa">O'Reilly</publisher>
</book>

<book id='1002'>
<author>congfeng</author>
<title>C++ Designer</title>
<publisher id='bbb'>New Publish</publisher>
</book>
</books>
-->
<?php
$dom = new DOMDocument();
if (!$dom->load('books.xml'))
{
echo "load books.xml failed!<br>";
return;
}

$books = $dom->getElementsByTagName('book');
foreach ($books as $book)
{
//get book id
$book_id = $book->getAttribute('id');

//get author
$nodeAuth = $book->getElementsByTagName('author');
$strAuth = $nodeAuth->item(0)->nodeValue;
//get publisher
$nodePub = $book->getElementsByTagName('publisher');
$strPub = $nodePub->item(0)->nodeValue;
$pub_id = $nodePub->item(0)->getAttribute('id');
//get title
$nodeTitle = $book->getElementsByTagName('title');
$strTitle = $nodeTitle->item(0)->nodeValue;

//save data
$arrInfo['book_id'] = $book_id;
$arrInfo['author'] = $strAuth;
$arrInfo['publiser'] = $strPub;
$arrInfo['title'] = $strTitle;
$arrInfo['pub_id'] = $pub_id;
//save info
$arrInfos[] = $arrInfo;
}

var_dump($arrInfos);
?>