PHP读取XML

使用DOMDocument对象读取xml

创建一个DOMDocument对象

$doc = new DOMDocument();

载入xml文件

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

获取标签对象

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

获取标签的子对象

$titles = $book->getElementsByTagName("title");   

获取标签的值或属性

$title = $titles->item(0)->nodeValue;

实例1，获取图书列表

book.xml

<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
    <book>
        <title>PHP和MySQL开发</title>
        <author>谭浩强</author>
    </book>
    <book>
        <titile>xml从入门到精通</titile>
        <author>郑智化</author>
    </book>
</bookstore>

load.php

<?php header("Content-type:text/html;charset=utf8"); $doc = new DOMDocument(); //创建DOMDocument对象 $doc->load("book.xml"); //打开book.xml $books = $doc->getElementsByTagName("book"); //获取book标签对象 foreach ($books as $book){ //遍历对象 $titles = $book->getElementsByTagName("title"); //获取book标签下的title标签 $title = $titles->item(0)->nodeValue; //获取标签的值 $authors = $book->getElementsByTagName("author");//获取book标签下的author标签 $author = $authors->item(0)->nodeValue; //获取标签的值 $item["title"] = $title; $item["author"] = $author; $bookinfo[] = $item; } var_dump($bookinfo);

实例2，读取配置文件

config.xml

<?xml version="1.0" encoding="UTF-8"?>
<mysql>
    <host>127.0.0.1</host>
    <username>root</username>
    <password></password>
    <database>test</database>
</mysql>

config.php

<?php header("Content-type:text/html;charset=utf8"); $doc = new DOMDocument(); //创建DOMDocument对象 $doc->load("config.xml"); //打开config.xml $mysql = $doc->getElementsByTagName("mysql"); //获取mysql标签对象 $host = $mysql->item(0)->getElementsByTagName("host"); $config["host"] = $host->item(0)->nodeValue; $username = $mysql->item(0)->getElementsByTagName("username"); $config["username"] = $username->item(0)->nodeValue; $password = $mysql->item(0)->getElementsByTagName("password"); $config["password"] = $password->item(0)->nodeValue; $database = $mysql->item(0)->getElementsByTagName("database"); $config["database"] = $database->item(0)->nodeValue; var_dump($config);

使用simplexml方法读取xml

实例1，获取图书列表

load.php

<?php header("Content-type:text/html;charset=utf8"); $books = simplexml_load_file("book.xml"); foreach($books as $book){ $item["title"] = $book->title; $item["author"] = $book->author; $booklist[] = $item; } var_dump($booklist); 

实例2，读取配置文件

config.php

<?php header("Content-type:text/html;charset=utf8"); $mysql = simplexml_load_file("config.xml"); $config['host'] = $mysql->host; $config['username'] = $mysql->username; $config['password'] = $mysql->password; $config['databse'] = $mysql->database; var_dump($config);