php解析xml完整示例

 <!-- 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);	
 ?>