PHP读取XML文件的方法实例总结【DOMDocument及simplexml方法】_PHP教程

PHP读取XML文件的方法实例总结【DOMDocument及simplexml方法】

2021-08-17 16:01koastal PHP教程

这篇文章主要介绍了PHP读取XML文件的方法,结合实例形式总结分析了php基于DOMDocument及simplexml方法针对xml文件的载入、读取等相关操作技巧,需要的朋友可以参考下

本文实例讲述了PHP读取XML文件的方法。分享给大家供大家参考，具体如下：

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

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									$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);