January 2021
Intermediate to advanced
505 pages
9h 45m
Chinese
Content preview from PHP编程：第4版
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解析
XML
文件
｜
287
<item>
<title>Man Bites Dog</title>
<link>http://www.example.com/dog.php</link>
<description>Ironic turnaround!</description>
<language>en-us</language>
</item>
<item>
<title>Medical Breakthrough!</title>
<link>http://www.example.com/doc.php</link>
<description>Doctors announced a cure for me.</description>
<language>en-us</language>
</item>
</channel>
</rss>
解析
XML
文件
假设你有一个
XML
文件集合，每个文件都包含图书的信息，现在你想从集合构建索引
来显示标题和作者。你需要解析
XML
文件来识别标题
title
、作者
author
元素和它们
的内容。可以手动用正则表达式或者
strtok()
这样的字符串函数去做，但是做起来比看
起来复杂多了。此外，这些方法即使对合法的
XML
文件很容易有损失。最简单快速的
方案是用
PHP
自带的
XML
解析器。
PHP
有三种
XML
解析器
：一个是事件驱动的基于
Expat C
的库，一个是基于
DOM
的库，
还有一个适用于解析简单的
XML
文件
——
SimpleXML
。
最常用的解析器是事件驱动的库，它可以解析但不验证 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.