202 lines
7.9 KiB
PHP
202 lines
7.9 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | YBlog
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// +----------------------------------------------------------------------
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// | Copyright (c) 2008 http://www.yhustc.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: yhustc <yhustc@gmail.com>
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// +----------------------------------------------------------------------
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// $Id$
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/**
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+------------------------------------------------------------------------------
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* RSS生成类
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+------------------------------------------------------------------------------
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* @author yhustc <yhustc@gmail.com>
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* @version $Id$
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+------------------------------------------------------------------------------
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*/
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namespace Common\Lib\RSS;
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class RSS{
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/**
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+----------------------------------------------------------
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* RSS频道名
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+----------------------------------------------------------
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* @var string
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* @access protected
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+----------------------------------------------------------
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*/
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protected $channel_title = '';
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/**
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+----------------------------------------------------------
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* RSS频道链接
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+----------------------------------------------------------
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* @var string
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* @access protected
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+----------------------------------------------------------
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*/
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protected $channel_link = '';
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/**
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+----------------------------------------------------------
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* RSS频道描述
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+----------------------------------------------------------
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* @var string
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* @access protected
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+----------------------------------------------------------
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*/
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protected $channel_description = '';
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/**
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+----------------------------------------------------------
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* RSS频道使用的小图标的URL
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+----------------------------------------------------------
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* @var string
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* @access protected
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+----------------------------------------------------------
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*/
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protected $channel_imgurl = '';
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/**
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+----------------------------------------------------------
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* RSS频道所使用的语言
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+----------------------------------------------------------
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* @var string
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* @access protected
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+----------------------------------------------------------
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*/
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protected $language = 'zh_CN';
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/**
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+----------------------------------------------------------
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* RSS文档创建日期，默认为今天
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+----------------------------------------------------------
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* @var string
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* @access protected
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+----------------------------------------------------------
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*/
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protected $pubDate = '';
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protected $lastBuildDate = '';
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protected $generator = 'YBlog RSS Generator';
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/**
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+----------------------------------------------------------
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* RSS单条信息的数组
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+----------------------------------------------------------
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* @var string
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* @access protected
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+----------------------------------------------------------
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*/
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protected $items = array();
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/**
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+----------------------------------------------------------
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* 构造函数
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+----------------------------------------------------------
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* @access public
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+----------------------------------------------------------
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* @param string $title RSS频道名
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* @param string $link RSS频道链接
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* @param string $description RSS频道描述
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* @param string $imgurl RSS频道图标
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+----------------------------------------------------------
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*/
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public function __construct($title, $link, $description, $imgurl = '')
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{
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$this->channel_title = $title;
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$this->channel_link = $link;
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$this->channel_description = $description;
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$this->channel_imgurl = $imgurl;
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$this->pubDate = Date('Y-m-d H:i:s', time());
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$this->lastBuildDate = Date('Y-m-d H:i:s', time());
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}
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/**
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+----------------------------------------------------------
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* 设置私有变量
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+----------------------------------------------------------
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* @access public
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+----------------------------------------------------------
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* @param string $key 变量名
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* @param string $value 变量的值
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+----------------------------------------------------------
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*/
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public function Config($key,$value)
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{
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$this->{$key} = $value;
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}
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/**
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+----------------------------------------------------------
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* 添加RSS项
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+----------------------------------------------------------
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* @access public
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+----------------------------------------------------------
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* @param string $title 日志的标题
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* @param string $link 日志的链接
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* @param string $description 日志的摘要
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* @param string $pubDate 日志的发布日期
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+----------------------------------------------------------
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*/
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function AddItem($title, $link, $description, $pubDate)
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{
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$this->items[] = array('title' => $title, 'link' => $link, 'description' => $description, 'pubDate' => $pubDate);
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}
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/**
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+----------------------------------------------------------
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* 输出RSS的XML为字符串
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+----------------------------------------------------------
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* @access public
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+----------------------------------------------------------
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* @return string
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+----------------------------------------------------------
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*/
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public function Fetch()
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{
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$rss = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\r\n";
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$rss = "<rss version=\"2.0\">\r\n";
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$rss .= "<channel>\r\n";
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$rss .= "<title><![CDATA[{$this->channel_title}]]></title>\r\n";
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$rss .= "<description><![CDATA[{$this->channel_description}]]></description>\r\n";
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$rss .= "<link>{$this->channel_link}</link>\r\n";
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$rss .= "<language>{$this->language}</language>\r\n";
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if (!empty($this->pubDate))
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$rss .= "<pubDate>{$this->pubDate}</pubDate>\r\n";
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if (!empty($this->lastBuildDate))
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$rss .= "<lastBuildDate>{$this->lastBuildDate}</lastBuildDate>\r\n";
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if (!empty($this->generator))
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$rss .= "<generator>{$this->generator}</generator>\r\n";
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$rss .= "<ttl>5</ttl>\r\n";
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if (!empty($this->channel_imgurl)) {
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$rss .= "<image>\r\n";
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$rss .= "<title><![CDATA[{$this->channel_title}]]></title>\r\n";
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$rss .= "<link>{$this->channel_link}</link>\r\n";
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$rss .= "<url>{$this->channel_imgurl}</url>\r\n";
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$rss .= "</image>\r\n";
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}
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for ($i = 0; $i < count($this->items); $i++) {
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$rss .= "<item>\r\n";
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$rss .= "<title><![CDATA[{$this->items[$i]['title']}]]></title>\r\n";
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$rss .= "<link>{$this->items[$i]['link']}</link>\r\n";
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$rss .= "<description><![CDATA[{$this->items[$i]['description']}]]></description>\r\n";
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$rss .= "<pubDate>{$this->items[$i]['pubDate']}</pubDate>\r\n";
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$rss .= "</item>\r\n";
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}
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$rss .= "</channel>\r\n</rss>";
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return $rss;
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}
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/**
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+----------------------------------------------------------
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* 输出RSS的XML到浏览器
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+----------------------------------------------------------
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* @access public
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+----------------------------------------------------------
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* @return void
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+----------------------------------------------------------
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*/
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public function Display()
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{
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header("Content-Type: text/xml; charset=utf-8");
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echo $this->Fetch();
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exit;
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}
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}
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