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File: feed.class.php

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  Classes of Md. Kausar Alam  >  RSS feed class  >  feed.class.php  >  Download  
File: feed.class.php
Role: Example script
Content type: text/plain
Description: Possible to create feed
Class: RSS feed class
Regenerate an RSS 2.0 feed from another RSS feed
Author: By
Last change:
Date: 7 years ago
Size: 3,631 bytes
 

Contents

Class file image Download
<?php
/**
 * An open source application development framework for PHP5
 *
 * @author Md. Kausar Alam (kausar_ss2003(at)yahoo.com)
 * @since Version 1.0
 * file namw feed.class.php
 * @filesource
 */

// xmlGenerator class
class feedGenerator
{

   
//call constractor
   
function feedGenerator($xml)
    {
       
$this->xmlDoc = new DOMDocument();
       
$this->xmlDoc->load($xml);
    }
   
  
/*
    * get link/description/title
    * eleminate the unwnate char repalceing HTML char
    */
   
function replaceHTMLCharacter($str)
    {
       
$str = preg_replace('/&/', '&amp;', $str);
       
$str = preg_replace('/</', '&lt;', $str);
       
$str = preg_replace('/>/', '&gt;', $str);
       
$str = preg_replace('/\"/', '&quot;', $str);
       
$str = preg_replace('/\'/', '&apos;', $str);

        return
$str;
    }
   
   
// get header only
   
function getHeader()
    {
       
$channel = $this->xmlDoc->getElementsByTagName('channel')->item(0);
        
// get channel title
       
$channel_title = $channel->getElementsByTagName('title')->item(0)->childNodes->item(0)->nodeValue;
       
$item_title = $this->replaceHTMLCharacter($item_title);
       
// get channel link
       
$channel_link = $channel->getElementsByTagName('link')->item(0)->childNodes->item(0)->nodeValue;
       
$channel_link = $this->replaceHTMLCharacter($channel_link);
       
// get channel description
       
$channel_desc = $channel->getElementsByTagName('description')->item(0)->childNodes->item(0)->nodeValue;
       
$channel_desc = $this->replaceHTMLCharacter($channel_desc);
       
       
//return header
       
return '<?xml version="1.0" encoding="UTF-8" ?>
                 <rss xmlns:dc="http://purl.org/dc/elements/1.1/" version="2.0">
                 <channel>
                 <title>'
.$channel_title.'</title>
                 <description>'
.$channel_desc.'</description>
                 <link>'
.$channel_link.'</link>
                <language>en-us</language>'
;
   
    }
   
   
// main body of xml file here generate
   
function getBody()
    {
       
       
$strBody= "";
       
//get and output "<item>" elements
       
$x= $this->xmlDoc->getElementsByTagName('item');
       
//loop will continue untill out site's xml file has finished
       
for ($i=0; $i<$x->length; $i++)
         {
            
//get title
            
$item_title = $x->item($i)->getElementsByTagName('title')->item(0)->childNodes->item(0)->nodeValue;
            
$item_title = $this->replaceHTMLCharacter($item_title);
            
//get link
            
$item_link = $x->item($i)->getElementsByTagName('link')->item(0)->childNodes->item(0)->nodeValue;
            
$item_link = $this->replaceHTMLCharacter($item_link);
            
//get description
            
$item_desc = $x->item($i)->getElementsByTagName('description')->item(0)->childNodes->item(0)->nodeValue;
            
$item_desc = $this->replaceHTMLCharacter($item_desc);
            
            
$strBody= $strBody . '<item><title>'.$item_title.'</title>
                                      <description>'
.$item_desc.'</description>
                                      <link>'
.$item_link.'</link>
                                      <guid isPermaLink="true">'
.$item_link.'</guid>
                                      </item>'
;
                                         
         }
        
//return main body of xml file
       
return $strBody;
    }
   
//return footer
   
function getFooter()
    {
          return
"</channel></rss>";
    }
   
   
//write all data in xml file
   
function generateXMLFile()
    {
       
$handle = fopen("feed.xml", "w");
       
fwrite($handle , $this->getHeader());
       
fwrite($handle , $this->getBody());
       
fwrite($handle , $this->getFooter());
       
fclose($handle);
    }


}
// end of class
   
    //create object
   
$feedApp =new feedGenerator("http://rss.msnbc.msn.com/id/3032091/device/rss/rss.xml");
   
//write on xml file
   
$feedApp->generateXMLFile();

   
 
header('location:feed.xml');
 exit();
       
 
?>