使用PHP插入新的子元素XML元素需要帮助 [英] Need Assistance With Inserting New Child XML Element With PHP

问题描述

我已经浏览了几个小时，没有简单的解释或演示如何将新的子元素插入XML文件，然后保存XML文件。

I've been browsing around for hours now and there is no simple explaination or demonstration of how to insert a new child element into an XML file and then save the XML file.

这是XML Tree ..（很简单）

Here is the XML Tree.. (very simple)

< book > 

    <chapter> 
        <title>Everyday Italian</title> 
        <year>2005</year> 
    </chapter> 
    <chapter> 
        <title>Harry Potter</title> 
        <year>2005</year> 
    </chapter> 
    <chapter> 
        <title>XQuery Kick Start</title> 
        <year>2003</year>   
    </chapter> 

< / book > 

...
我非常感谢任何帮助。再次回顾一下，我有一个PHP文件，它的目标是用specifieidtitle和year插入一个新的chapter，然后保存新文件（基本上覆盖了book.xml文件）

... I would deeply appreciate any help with this. Once again to recap, I have a PHP file and it its goal is to insert a new "chapter" with specifieid "title" and "year" and then save the new file (basically overwriting the book.xml file)

推荐答案

php手册中有一个例子，它提供了你需要的所有信息：
http://php.net/manual/en/domdocument.save.php

There is an example inside the php-manual which gives you all informations you need: http://php.net/manual/en/domdocument.save.php

您需要的方法：

• DOMDocument-> load（）
  
  //从文件加载xml


• DOMDocument-> createElement（）
  
  //创建一个元素节点


• DOMDocument-> createTextNode（）
  
  //创建一个textNode


• DOMNode - > appendChild（）
  
  //将一个节点附加到另一个节点


• DOMDocument-> save（）
  
  //将XML保存到文件中

• DOMDocument->load()
  //load xml from a file
• DOMDocument->createElement()
  //create a element-node
• DOMDocument->createTextNode()
  //create a textNode
• DOMNode->appendChild()
  //append one node to another
• DOMDocument->save()
  //save XML into a file

，

<?php
  //create a document
  $doc=new DOMDocument;
  //load the file
  $doc->load('book.xml');
  //create chapter-element
  $chapter=$doc->createElement('chapter');
  //create title-element
  $title=$doc->createElement('title');
  //insert text to the title
  $title->appendChild($doc->createTextNode('new title for a new chapter'));
  //create year-element
  $year=$doc->createElement('year');
  //insert text to the year
  $year->appendChild($doc->createTextNode('new year for a new chapter'));
  //append title and year to the chapter
  $chapter->appendChild($title);  
  $chapter->appendChild($year);  
  //append the chapter to the root-element
  $doc->documentElement->appendChild($chapter);  
  //save it into the file
  $doc->save('book.xml');
?>

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