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通用PHP RSS/Feed 生成类库(支持RSS 1.0/2.0和ATOM)

通用PHP RSS/Feed 生成类库(支持RSS 1.0/2.0和ATOM)
PHP Universal Feed Generator (supports RSS 1.0, RSS 2.0 and ATOM)

下载 : FeedWriter 2009-12-22 (7.52 KB, 已下载 644 次)

可生成的RSS版本:

  • RSS 1.0 (which officially obsoleted RSS 0.90)
  • RSS 2.0 (which officially obsoleted RSS 0.91, 0.92, 0.93 and 0.94)
  • ATOM 1.0

功能:

  • 可生成RSS 1.0, RSS 2.0 和ATOM 1.0 feeds
  • 所有生成的Feed可经过验证 feed validator.
  • 支持所有Feed属性.
  • 容易的设置channel 和 feed 条目
  • 为不同的版本使用命名空间.
  • 自动转换日期格式.
  • 为ATOM feeds生成 UUID (通用唯一标识符 Universally Unique Identifier).
  • 支持子标签和子标签属性. (如: image 和 encloser tags)
  • 完全的PHP5面向对像构造 class structure.
  • 为需要的标签CDATA 编码.
  • 使用差不多的代码生成所有版本的feed

使用范例:

<?php
 
// This is a minimum example of using the class
 
include("FeedWriter.php");
 
 
//Creating an instance of FeedWriter class.
 
$TestFeed = new FeedWriter(RSS2);
 
 
//Setting the channel elements
 
//Use wrapper functions for common channel elements
 
$TestFeed->setTitle('Testing & Checking the RSS writer class');
 
$TestFeed->setLink('http://www.ajaxray.com/projects/rss');
 
$TestFeed->setDescription('This is test of creating a RSS 2.0 feed Universal Feed Writer');
 
 
//Image title and link must match with the 'title' and 'link' channel elements for valid RSS 2.0
 
$TestFeed->setImage('Testing the RSS writer class','http://www.ajaxray.com/projects/rss','http://www.rightbrainsolution.com/images/logo.gif');
 
    
//Detriving informations from database addin feeds
    
$db->query($query);
    
$result = $db->result;
 
    
while($row = mysql_fetch_array($result, MYSQL_ASSOC))
    
{
        
//Create an empty FeedItem
        
$newItem = $TestFeed->createNewItem();
        
        
//Add elements to the feed item   
        
$newItem->setTitle($row['title']);
        
$newItem->setLink($row['link']);
        
$newItem->setDate($row['create_date']);
        
$newItem->setDescription($row['description']);
        
        
//Now add the feed item
        
$TestFeed->addItem($newItem);
    
}
 
 
//OK. Everything is done. Now genarate the feed.
 
$TestFeed->genarateFeed();
 
?>

补充:
另一个生成RSS 2.0的PHP Class

class_rss_writer.php
<?php
 
/**
 * 使用范例:
 * ==============================================================
    $feed = new RSS();
    $feed->title       = "RSS Feed Title";
    $feed->link        = "
http://www.21andy.com/";
    $feed->description = "Recent articles on 21andy.com.";
 
    $db->query($query);
    $result = $db->result;
    while($row = mysql_fetch_array($result, MYSQL_ASSOC))
    {
        $item = new RSSItem();
        $item->title = $title;
        $item->link  = $link;
        $item->setPubDate($create_date);
        $item->description = "<![CDATA[ $html ]]>";
        $feed->addItem($item);
    }
    echo $feed->serve();
 * ==============================================================
 */

 
class RSS
{
    
var $title;
    
var $link;
    
var $description;
    
var $language = "en-us";
    
var $pubDate;
    
var $items;
    
var $tags;
 
    
function RSS() {
        
$this->items = array();
        
$this->tags  = array();
    
}
 
    
function addItem($item) {
        
$this->items[] = $item;
    
}
 
    
function setPubDate($when) {
        
if(strtotime($when) == false)
            
$this->pubDate = date("D, d M Y H:i:s ", $when) . "GMT";
        
else
            
$this->pubDate = date("D, d M Y H:i:s ", strtotime($when)) . "GMT";
    
}
 
    
function getPubDate() {
        
if(empty($this->pubDate))
            
return date("D, d M Y H:i:s ") . "GMT";
        
else
            
return $this->pubDate;
    
}
 
    
function addTag($tag, $value) {
        
$this->tags[$tag] = $value;
    
}
 
    
function out() {
        
$out  = $this->header();
        
$out .= "<channel>\n";
        
$out .= "<title>" . $this->title . "</title>\n";
        
$out .= "<link>" . $this->link . "</link>\n";
        
$out .= "<description>" . $this->description . "</description>\n";
        
$out .= "<language>" . $this->language . "</language>\n";
        
$out .= "<pubDate>" . $this->getPubDate() . "</pubDate>\n";
 
        
foreach($this->tags as $key => $val)
            
$out .= "<$key>$val</$key>\n";
        
foreach($this->items as $item)
            
$out .= $item->out();
 
        
$out .= "</channel>\n";           
        
$out .= $this->footer();
 
        
$out = str_replace("&", "&amp;", $out);
        
return $out;
    
}
    
    
function serve($contentType = "application/xml") {
        
$xml = $this->out();
        
header("Content-type: $contentType");
        
echo $xml;
    
}
 
    
function header() {
        
$out  = '<?xml version="1.0" encoding="utf-8"?>' . "\n";
        
$out .= '<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">' . "\n";
        
return $out;
    
}
 
    
function footer() {
        
return '</rss>';
    
}
}
 
class RSSItem
{
    
var $title;
    
var $link;
    
var $description;
    
var $pubDate;
    
var $guid;
    
var $tags;
    
var $attachment;
    
var $length;
    
var $mimetype;
 
    
function RSSItem() {
        
$this->tags = array();
    
}
 
    
function setPubDate($when) {
        
if(strtotime($when) == false)
            
$this->pubDate = date("D, d M Y H:i:s ", $when) . "GMT";
        
else
            
$this->pubDate = date("D, d M Y H:i:s ", strtotime($when)) . "GMT";
    
}
 
    
function getPubDate() {
        
if(empty($this->pubDate))
            
return date("D, d M Y H:i:s ") . "GMT";
        
else
            
return $this->pubDate;
    
}
 
    
function addTag($tag, $value) {
        
$this->tags[$tag] = $value;
    
}
 
    
function out() {
        
$out .= "<item>\n";
        
$out .= "<title>" . $this->title . "</title>\n";
        
$out .= "<link>" . $this->link . "</link>\n";
        
$out .= "<description>" . $this->description . "</description>\n";
        
$out .= "<pubDate>" . $this->getPubDate() . "</pubDate>\n";
 
        
if($this->attachment != "")
            
$out .= "<enclosure url='{$this->attachment}' length='{$this->length}' type='{$this->mimetype}' />";
 
        
if(empty($this->guid)) $this->guid = $this->link;
        
$out .= "<guid>" . $this->guid . "</guid>\n";
 
        
foreach($this->tags as $key => $val) $out .= "<$key>$val</$key\n>";
        
$out .= "</item>\n";
        
return $out;
    
}
 
    
function enclosure($url, $mimetype, $length) {
        
$this->attachment = $url;
        
$this->mimetype   = $mimetype;
        
$this->length     = $length;
    
}
}

Tags: PHP, class, , Feed, RSS

本文地址: http://blog.21andy.com/20091222/1575.html