php解析xml方法实例详解

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<?xml version="1.0" encoding="ISO-8859-1"?>

<bookstore>

<book category="children">

<title lang="en">Harry Potter</title>

<author>J K. Rowling</author>

<year>2005</year>

<price>29.99</price>

</book>

<book category="cooking">

<title lang="en">Everyday Italian</title>

<author>Giada De Laurentiis</author>

<year>2005</year>

<price>30.00</price>

</book>

<book category="web" cover="paperback">

<title lang="en">Learning XML</title>

<author>Erik T. Ray</author>

<year>2003</year>

<price>39.95</price>

</book>

</bookstore>

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<?php

//创建一个DOMDocument对象

$doc=new DOMDocument();

//加载XML文件

$doc->load("books.xml");

//获取所有的book标签

$bookDom=$doc->getElementsByTagName("book");

foreach($bookDom as $book){

$title = $book->getElementsByTagName("title")->item(0)->nodeValue;

$author = $book->getElementsByTagName("author")->item(0)->nodeValue;

$year = $book->getElementsByTagName("year")->item(0)->nodeValue;

$price = $book->getElementsByTagName("price")->item(0)->nodeValue;

echo "title：".$title."<br>";

echo "author：".$author."<br>";

echo "year：".$year."<br>";

echo "price：".$price ."<br>";

echo "***********************************<br>";

}

?>

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<?php

// 读取xml文件

$file = "books.xml";

$data = file_get_contents($file);

// 创建解析器

$parser = xml_parser_create();

// 将 XML 数据解析到数组中

xml_parse_into_struct($parser, $data, $vals, $index);

// 释放解析器

xml_parser_free($parser);

// 数组处理

$arr = array();

$t=0;

foreach($vals as $value) {

$type = $value['type'];

$tag = $value['tag'];

$level = $value['level'];

$attributes = isset($value['attributes'])?$value['attributes']:"";

$val = isset($value['value'])?$value['value']:"";

switch ($type) {

case 'open':

if ($attributes != "" || $val != "") {

$arr[$t]['tag'] = $tag;

$arr[$t]['attributes'] = $attributes;

$arr[$t]['level'] = $level;

$t++;

}

break;

case "complete":

if ($attributes != "" || $val != "") {

$arr[$t]['tag'] = $tag;

$arr[$t]['attributes'] = $attributes;

$arr[$t]['val'] = $val;

$arr[$t]['level'] = $level;

$t++;

}

break;

}

}

echo "<pre>";

print_r($arr);

echo "</pre>";

?>

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<?php

$file="books.xml";

$xml = simplexml_load_file($file);

echo "<pre>";

print_r($xml);

echo "</pre>";

?>