php解析xml方法实例详解
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本文以实例形式详细讲述了php解析xml方法,分享给大家供大家参考,具体分析如下:
books.xml文件如下:
- <?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>
1、DOM解析XML
- <?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>";
- }
- ?>
2、xml_parse_into_struct
创建解析器,将xml数据解析到数组,释放解析器,再有就是从数组中提取想要的值。
- <?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>";
- ?>
3、用 SAX 解析器读取 XML-----XML Simple API(SAX)解析器
- <?php
- $file="books.xml";
- $xml = simplexml_load_file($file);
- echo "<pre>";
- print_r($xml);
- echo "</pre>";
- ?>
Tags: php解析xml
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