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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: 6 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();
        
 
?>