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PHP array generates encapsulated class instances of XML format data

高洛峰
Release: 2023-03-04 06:24:01
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The example in this article describes the encapsulation class for generating XML format data from PHP arrays. Share it with everyone for your reference, as follows:

Class library code: MakeXML.php:

<?php
/**
* MakeXML
*
* @author Lin Jiong(slime09@gmail.com)
* @version v1.0
* @license Copyright (c) 2009 Lin Jiong (www.cn09.com)
* The LGPL (http://www.gnu.org/licenses/lgpl.html) licenses.
*/
/*
* 从数组生成XML文件
*/
class Fwcms_MakeXML
{
  private static $instance;
  private function __construct(){}
  /**
   * 单件模式调用本类
   *
   * @return 单件模式
   */
  public static function getInstance() {
    if (!isset(self::instance)) {
      self::instance = new Fwcms_MakeXML();
    }
    return self::instance;
  }
  /**
   * 获取XML字串
   * @param $array 用于生成XML的数组,数组可以是二维或多维的,其中的第一个元素作为XML元素名
   * @param $xslName XSL文件名(如:"http://www.xxx.com/templates/normal/xslname.xsl")
   * @return $XMLString 输出XML字符串
   */
  public function getXML($array,$xslName=""){
    $XMLString = &#39;<?xml version="1.0" encoding="utf-8"?>&#39;;
    if($xslName!="")
      $XMLString.=&#39;<?xml-stylesheet type="text/xsl" href="&#39;.$xslName.&#39;"?>&#39;;
    $XMLString.=$this->make($array);
    return $XMLString;
  }
  /*
   * 递归生成XML字串
   */
  private function make($array)
  {
    $XMLString=&#39;&#39;;
    $haveRightBracket=FALSE;
    if(isset($array[&#39;elementName&#39;])){
      $elementName=array_shift($array);//数组的第一个元素为XML元素名
    }else{
      $elementName=&#39;item&#39;;//如果没有指定则元素名为item
    }
    $XMLString.=&#39;<&#39;.$elementName.&#39; &#39;;
    if(is_array($array)){
    foreach($array as $paramKey=>$nodeParam){
        if(!is_array($nodeParam)){
          //如果不是一个下级元素,那就是元素的参数
          $XMLString.=$paramKey.&#39;="&#39;.$nodeParam.&#39;" &#39;;
        }else{
          if(!$haveRightBracket){
            $XMLString.=&#39;>&#39;;
            $haveRightBracket=TRUE;
          }
          //如果是下级元素,则追加元素
          $XMLString.=$this->make($nodeParam);
        }
      }
    }
    if(!$haveRightBracket){
      $XMLString.=&#39;>&#39;;
      $haveRightBracket=TRUE;
    }
    $XMLString.=&#39;</&#39;.$elementName.&#39;>&#39;;//该元素处理结束
    return $XMLString;
  }
  /**
   * 将字串保存到文件
   * @param $fileName 文件名
   * @param $XMLString 已经生成的XML字串
   */
  public function saveToFile($fileName,$XMLString)
  {
    if(!$handle=fopen($fileName,&#39;w&#39;))
    {
      return FALSE;
    }
    if(!fwrite($handle,$XMLString))
    {
      return FALSE;
    }
    return TRUE;
  }
  /**
   * 直接通过数组生成XML文件
   */
  public function write($fileName,$array,$xslName=&#39;&#39;){
    $XMLString=$this->getXML($array,$xslName);
    $result=$this->saveToFile($fileName,$XMLString);
    return $result;
  }
}
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Test code testXML.php:

<?php
require_once &#39;MakeXML.php&#39;;
$xml=Fwcms_MakeXML::getInstance();
//$xml=new Fwcms_MakeXML();
$array=array(
    &#39;elementName&#39;=>&#39;data&#39;,//XML节点名,如不定义则默认为ITEM
    &#39;test1&#39;=>array(
      //不定义本节点名
      //&#39;elementName&#39;=>&#39;item1&#39;,
      &#39;id&#39;=>1,
      &#39;title&#39;=>&#39;try1&#39;
    ),
    &#39;test2&#39;=>array(
      &#39;elementName&#39;=>&#39;item2&#39;,
      &#39;id&#39;=>2,//参数
      &#39;title&#39;=>&#39;try2&#39;,//参数
      &#39;test2.2&#39;=>array(
        //XML子节点,必须放在所有参数之后,后面不可以再跟参数
        &#39;elementName&#39;=>&#39;item2.2&#39;,
        &#39;id&#39;=>2.2,
        &#39;title&#39;=>&#39;try2.2&#39;
      )
    ),
    &#39;test3&#39;=>array(
      &#39;elementName&#39;=>&#39;item3&#39;,
      &#39;id&#39;=>3,
      &#39;title&#39;=>&#39;try3&#39;
    ),
    &#39;test4&#39;=>array(
      &#39;elementName&#39;=>&#39;item4&#39;,
      &#39;id&#39;=>4,
      &#39;title&#39;=>&#39;try4&#39;
    ),
    &#39;test5&#39;=>array(
      //不定义本节点名
      //&#39;elementName&#39;=>&#39;item5&#39;,
      &#39;id&#39;=>5,
      &#39;title&#39;=>&#39;try5&#39;
    )
  );
$string=$xml->getXML($array);//由数组生成XML字串
$xml->saveToFile(&#39;test.xml&#39;,$string);//把生成的XML字串写入到文件
$xml->write(&#39;test2.xml&#39;,$array,&#39;test2.xsl&#39;);//直接从数组中获取字串生成文件
header ("content-type: text/xml");
echo $string;
?>
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Hope this article will be helpful to everyone in PHP program design .

For more related articles on encapsulation class examples of generating XML format data from PHP arrays, please pay attention to the PHP Chinese website!


Related labels:
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