Table of Contents
回复讨论(解决方案)
Home Backend Development PHP Tutorial PHP的xml字符串解析(在线求解)

PHP的xml字符串解析(在线求解)

Jun 23, 2016 pm 02:09 PM

小弟接触php时间不长,今天遇到个问题就是解析xml字符串,内容是

<?xml version='1.0' encoding='utf-8'?><order_info><user_name>13817969688</user_name><mobile>13817969688</mobile><tel>021-54485454</tel><customer_name>刘先生</customer_name><city_name>上海</city_name><district_name>长宁</district_name><address>新中路999号4栋8楼</address><customer_word>送货前电话联系,谢谢。</customer_word><goods_infos><good><goods_id>51541</goods_id><goods_amount>1</goods_amount></good><good><goods_id>51542</goods_id><goods_amount>3</goods_amount></good></goods_infos></order_info>
Copy after login


$xml=simplexml_load_string($xmlStr);foreach($xml->order_info as $item) {	oreach($item as $k=>$v)	echo "$k $v\n";}
Copy after login

代码是网上找的,但用到我的这个上面行不通,我试了一下,一方面是因为字符串有汉字,另一方面是xml结构跟网上提供的示例不一样,请问亲们这个要怎么解析呢


回复讨论(解决方案)

 header('Content-Type: text/xml');
Copy after login


加上这行代码试试

1、simplexml 会忽略根节点
对于你的示例数据,根节点 order_info 被忽略,所以 $xml->order_info 不存在,所以你不会有输出
打印一级子节点的值应这样写

foreach($xml->children() as $k=>$v) {  if(empty($v)) //这里检查是否有子节点,如有就不打印。这样就跳过了 goods_infos    echo "$k $v\n";}
Copy after login
Copy after login

2、如果是打印 goods_infos 下的 good 子节点,则写作
foreach($xml->goods_infos->good as $item) {  foreach($item as $k=>$v)    echo "$k $v\n";}
Copy after login
Copy after login

3、如果你的程序文件不是 utf-8 的,还应该有
$xmlStr = str_replace("encoding='utf-8'", "encoding='gbk'", $xmlStr);
即将字符集改为真实的字符集
当然打印的结果仍然是 utf-8 的

如果需要遍历所有节点,那么就需要递归

function show_child($xml) {  foreach($xml->children() as $tag=>$item) {    if($item) show_child($item);    else echo "$tag: $item\n";  }}show_child($xml);
Copy after login
user_name: 13817969688
mobile: 13817969688
tel: 021-54485454
customer_name: 刘先生
city_name: 上海
district_name: 长宁
address: 新中路999号4栋8楼
customer_word: 送货前电话联系,谢谢。
goods_id: 51541
goods_amount: 1
goods_id: 51542
goods_amount: 3

1、simplexml 会忽略根节点
对于你的示例数据,根节点 order_info 被忽略,所以 $xml->order_info 不存在,所以你不会有输出
打印一级子节点的值应这样写

foreach($xml->children() as $k=>$v) {  if(empty($v)) //这里检查是否有子节点,如有就不打印。这样就跳过了 goods_infos    echo "$k $v\n";}
Copy after login
Copy after login

2、如果是打印 goods_infos 下的 good 子节点,则写作
foreach($xml->goods_infos->good as $item) {  foreach($item as $k=>$v)    echo "$k $v\n";}
Copy after login
Copy after login

3、如果你的程序文件不是 utf-8 的,还应该有
$xmlStr = str_replace("encoding='utf-8'", "encoding='gbk'", $xmlStr);
即将字符集改为真实的字符集
当然打印的结果仍然是 utf-8 的
非常感谢你的详细解答,但现在遇到个问题是,我的xml文件在simplexml_load_string处理之前是正常的,但处理之后输出发现乱码了,而且转码好像转不过来,我的程序文件是gbk的,所以我加过$xmlStr = str_replace("encoding='utf-8'", "encoding='gbk'", $xmlStr);了

不是说了吗?
当然打印的结果仍然是 utf-8 的
因为 utf-8 是 xml 的工作语言
你需要逐个的对待打印的数据进行转码
比如 echo iconv('utf-6', 'gbk', $v);

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

Describe the SOLID principles and how they apply to PHP development. Describe the SOLID principles and how they apply to PHP development. Apr 03, 2025 am 12:04 AM

The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.

How to automatically set permissions of unixsocket after system restart? How to automatically set permissions of unixsocket after system restart? Mar 31, 2025 pm 11:54 PM

How to automatically set the permissions of unixsocket after the system restarts. Every time the system restarts, we need to execute the following command to modify the permissions of unixsocket: sudo...

Explain the concept of late static binding in PHP. Explain the concept of late static binding in PHP. Mar 21, 2025 pm 01:33 PM

Article discusses late static binding (LSB) in PHP, introduced in PHP 5.3, allowing runtime resolution of static method calls for more flexible inheritance.Main issue: LSB vs. traditional polymorphism; LSB's practical applications and potential perfo

How to send a POST request containing JSON data using PHP's cURL library? How to send a POST request containing JSON data using PHP's cURL library? Apr 01, 2025 pm 03:12 PM

Sending JSON data using PHP's cURL library In PHP development, it is often necessary to interact with external APIs. One of the common ways is to use cURL library to send POST�...

Framework Security Features: Protecting against vulnerabilities. Framework Security Features: Protecting against vulnerabilities. Mar 28, 2025 pm 05:11 PM

Article discusses essential security features in frameworks to protect against vulnerabilities, including input validation, authentication, and regular updates.

How to debug CLI mode in PHPStorm? How to debug CLI mode in PHPStorm? Apr 01, 2025 pm 02:57 PM

How to debug CLI mode in PHPStorm? When developing with PHPStorm, sometimes we need to debug PHP in command line interface (CLI) mode...

See all articles