PHP生成RSS文件类实例

<?php
if (defined('_class_rss_php')) return;
define('_class_rss_php教程',1);
/**
?
?*? 使用说明：
?*? $rss = new rss('redfox','http://aspzz.cn/',"redfox's blog");
?*? $rss->additem('rss class',"","xxx",date());
?*? $rss->additem(...);
?*? $rss->savetofile(...);
?*/
?
class rss {
?? //public
?? $rss_ver = "2.0";
?? $channel_title = '';
?? $channel_link = '';
?? $channel_description = '';
?? $language = 'zh_cn';
?? $copyright = '';
?? $webmaster = '';
?? $pubdate = '';
?? $lastbuilddate = '';
?? $generator = 'redfox rss generator';
?
?? $content = '';
?? $items = array();
?
?? function rss($title,$link,$description) {
?????? $this->channel_title = $title;
?????? $this->channel_link = $link;
?????? $this->channel_description = $description;
?????? $this->pubdate = date('y-m-d h:i:s',time());
?????? $this->lastbuilddate = date('y-m-d h:i:s',time());
?? }
?
?? function additem($title,$description,$pubdate) {
?????? $this->items[] = array('titile' => $title,
??????????????????????? 'link' => $link,
??????????????????????? 'description' => $description,
??????????????????????? 'pubdate' => $pubdate);
?? }
?
?? function buildrss() {
?????? $s = "<!--l version="1.0" encoding="gb2312"--> ";
?????? // start channel
?????? $s .= " ";
?????? $s .= " "
?????? $s .= "<link />{$this->channel_link} ";
?????? $s .= "{$this->channel_description} ";
?????? $s .= "{$this->language} ";
?????? if (!emptyempty($this->copyright)) {
????????? $s .= "{$this->copyright} ";
?????? }
?????? if (!emptyempty($this->webmaster)) {
????????? $s .= "{$this->webmaster} ";
?????? }
?????? if (!emptyempty($this->pubdate)) {
????????? $s .= "{$this->pubdate} ";
?????? }
?
?????? if (!emptyempty($this->lastbuilddate)) {
????????? $s .= "{$this->lastbuilddate} ";
?????? }
?
?????? if (!emptyempty($this->generator)) {
????????? $s .= "{$this->generator} ";
?????? }
??????
?????? // start items
?????? for ($i=0;$iitems),$i++) {
?????????? $s .= " ";
?????????? $s .= " ";
?????????? $s .= "<link />{$this->items[$i]['link']} ";
?????????? $s .= "<!--data[{$thi-->items[$i]['description']}]]> ";
?????????? $s .= "{$this->items[$i]['pubdate']} ";??????????
?????????? $s .= " ";
?????? }
?????
????? // close channel
????? $s .= " ";
????? $this->content = $s;
?? }
?
?? function show() {
?????? if (emptyempty($this->content)) $this->buildrss();
?????? header('content-type:text/xml');
?????? echo($this->content);
?? }
?
?? function savetofile($fname) {
?????? if (emptyempty($this->content)) $this->buildrss();
?????? $handle = fopen($fname,'wb');
?????? if ($handle === false)? return false;
?????? fwrite($handle,$this->content);
?????? fclose($handle);
?? }
}
?>