需要使用PHP编写XML - 如何？

Question

我有这个基本代码.

<chart lowerLimit='0' upperLimit='100' caption='Revenue' subcaption='US $ (1,000s)' numberPrefix='$' numberSuffix='K' showValue='1' >
   <colorRange>
      <color minValue='0' maxValue='50' color='A6A6A6'/>
      <color minValue='50' maxValue='75' color='CCCCCC'/> 
      <color minValue='75' maxValue='100' color='E1E1E1'/> 
   </colorRange> 
   <value>78.9</value>
   <target>80</target>
</chart>

它是从fusionwidgets使用的,没有关于如何在PHP中编写它的文档.

任何人都可以提供建议吗？

Answer 1

有一个完整的例子,php.net/XMLWriter可以生成与您发布的完全相同的XML输出.

<?php
$writer = new XMLWriter();  
$writer->openURI('php://output');  
$writer->startDocument('1.0','UTF-8');  
$writer->setIndent(4);   
$writer->startElement('chart');  
   $writer->writeAttribute('lowerLimit', '0');  
   $writer->writeAttribute('upperLimit', '100');  
   $writer->writeAttribute('caption', 'Revenue');  
   $writer->writeAttribute('subcaption', 'US $ (1,000s)');  
   $writer->writeAttribute('numberPrefix', '$');  
   $writer->writeAttribute('numberSuffix', 'K');  
   $writer->writeAttribute('showValue', '1');  
   $writer->startElement('colorRange');  
      $writer->startElement('color');  
         $writer->writeAttribute('minValue', '0');  
         $writer->writeAttribute('maxValue', '50'); 
         $writer->writeAttribute('color', 'A6A6A6'); 
      $writer->endElement();    
      $writer->startElement('color');  
         $writer->writeAttribute('minValue', '50');  
         $writer->writeAttribute('maxValue', '75'); 
         $writer->writeAttribute('color', 'CCCCCC'); 
      $writer->endElement();  
      $writer->startElement('color');  
         $writer->writeAttribute('minValue', '75');  
         $writer->writeAttribute('maxValue', '100'); 
         $writer->writeAttribute('color', 'E1E1E1'); 
      $writer->endElement();  
   $writer->endElement();  
   $writer->writeElement('value','78.9');  
   $writer->writeElement('target','78.9');  
$writer->endElement();  
$writer->endDocument();   
$writer->flush();
?>

Answer 2

我最喜欢写XML文件的方法是XMLWriter - http://php.net/xmlwriter.它非常强大且易于使用.

<?php
           $writer = new XMLWriter();  
           $writer->openURI('php://output');   
           $writer->startDocument('1.0','UTF-8');   
           $writer->setIndent(4);   
           $writer->startElement('items');  
           $writer->startElement("main");  
           $writer->writeElement('user_id', 3);  
           $writer->writeElement('msg_count', 11);  
           $writer->endElement();   
           $writer->startElement("msg");  
           $writer->writeAttribute('category', 'test');  
           $writer->endElement();     
           $writer->endElement();   
           $writer->endDocument();   
           $writer->flush(); 
    ?>

这段代码将生成以下XML:

<?xml version="1.0" encoding="UTF-8"?>
<items>
 <main>
  <user_id>3</user_id>
  <msg_count>11</msg_count>
 </main>
 <msg category="test"/>
</items>