本篇文章给大家谈谈织梦CMS系统QQ邮件RSS订阅的办法，以及织梦留言发送qq邮箱的知识点，同时本文还将给你拓展php生成RSS订阅的方法、php生成RSS订阅的方法，phprss订阅、php生成RS

本篇文章给大家谈谈织梦CMS系统QQ邮件RSS订阅的办法，以及织梦留言发送qq邮箱的知识点，同时本文还将给你拓展php生成RSS订阅的方法、php生成RSS订阅的方法，phprss订阅、php生成RSS订阅的方法，phprss订阅_PHP教程、RSS全站静态输出和RSS订阅的步骤（dedecms）等相关知识，希望对各位有所帮助，不要忘了收藏本站喔。

本文目录一览：

• 织梦CMS系统QQ邮件RSS订阅的办法（织梦留言发送qq邮箱）
• php生成RSS订阅的方法
• php生成RSS订阅的方法，phprss订阅
• php生成RSS订阅的方法，phprss订阅_PHP教程
• RSS全站静态输出和RSS订阅的步骤（dedecms）

织梦CMS系统QQ邮件RSS订阅的办法（织梦留言发送qq邮箱）

　

*近个人博客实现了织梦CMS的RSS订阅功能，不过也发现了一些问题，尤其像是QQ订阅，我们只能使用一个栏目的源，如果栏目较多，我们就不知道如何办了。QQlist是很多人在用的一个订阅的渠道，所以我们一定要想个方案，让DEDE可以实现整站的订阅。 
下面我推荐这个办法比较简单，不用改动DEDE的自身文件来实现，改动DEDE文件也会涉及到安全问题。 
1，添加一个RSS源码，文件名为:rss_qq.htm,将RSS源码文件保存到/templets/plus/目录下 
文件内容为: 
<rss xmlns:content="" xmlns:wfw="" xmlns:dc="" xmlns:atom="" xmlns:sy="" xmlns:slash="" version="2.0"> 
<channel> 
<title>{dede:global.cfg_webname/}</title><link />{dede:global.cfg_basehost/}</link /> 
<description>{dede:global.cfg_description/}</description> 
<language>zh_cn</language> 
<generator>{dede:global.cfg_webname/}</generator> 
<webmaster>{dede:global.cfg_admin邮箱/}</webmaster> 
{dede:arclist row='50' orderby='pubdate' titlelen='200'} 
<item> 
<title><![CDATA[[field:title/]]]></title><link />[field:arcurl/]</link /> 
<category>[field:typename/]</category> 
<pubdate>[field:pubdate function='strftime("%a,%d%b%Y%H:%M:%S +0800",@me)'/]</pubdate> 
<description><![CDATA[[field:array runphp='yes']@me = (strpos(@me['litpic'],'defaultpic') ? "": "<a [邮箱=href='%7B@me[%22arcurl%22]%7D']href='{@me["arcurl"]}'[/邮箱] target='_blank'><img [邮箱=src='%7B@me[%22litpic%22]%7D']src='{@me["litpic"]}'[/邮箱] border='0' /> 
"); [/field:array][field:description function='html2text(@me)'/] ... ]]></description> 
</item> 
{/dede:arclist} 
</channel> 
</rss> 
2.在根目录中添加rss.php文件 
文件内容为： 
<?php 
require_once (dirname(__FILE__) . "/include/common.inc.php"); 
require_once DEDEINC."/arc.partview.class.php"; 
$pv = new PartView(); 
$pv->SetTemplet($cfg_basedir . $cfg_templets_dir . "/plus/rss_qq.htm"); 
header("Content-type:application/xml"); 
$pv->Display(); 
?> 
3，在首页index.htm源码的头部标签中添加属性 
代码如下： 
<link rel="alternate" type="application/rss+xml" title="{dede:field.title/}" href=http://www.dede58.com/a/dedejq/"http:/www.dede58.com/rss.php" /> 
  
按以上步骤操作之后，我们就可以实现DEDE的整站订阅了，我们可以访问你根目录的rss.php文件看到效果，在使用QQlist的时候，只需要把 rss.php的路径（就是“"）填进去，就可以实现整站的订阅了。通过浏览器上的RSS源识别按钮即可识别。 
总结：默认情况下，*多调用50个*新的新闻，不过它有个好处时，是动态文件，不需要每次生成，只要有新新闻，RSS就会更新的。 本文章网址：http://www.ppssdd.com/code/13252.html。转载请保留出处，谢谢合作！

php生成RSS订阅的方法

php生成rss订阅的方法

 本文实例讲述了php生成rss订阅的方法。分享给大家供大家参考。具体分析如下：

RSS（简易信息聚合，也叫聚合内容）是一种描述和同步网站内容的格式。RSS可以是以下三个解释的其中一个： Really Simple Syndication；RDF (Resource Description Framework) Site Summary； Rich Site Summary。但其实这三个解释都是指同一种Syndication的技术。RSS目前广泛用于网上新闻频道，blog和wiki。使用RSS订阅能更快地获取信息，网站提供RSS输出，有利于让用户获取网站内容的最新更新。网络用户可以在客户端借助于支持RSS的聚合工具软件，在不打开网站内容页面的情况下阅读支持RSS输出的网站内容。
从技术上来说一个RSS文件就是一段规范的XML数据，该文件一般以rss，xml或者rdf作为后缀，下面是一段 rss 文件的内容示例：

代码如下:

立即学习“PHP免费学习笔记（深入）”；

http://www.jb51.net/



网站地址/rss
New RSS tutorial on W3School



网站地址/xml
New XML tutorial on W3School

 

下面分享一段使用 php 动态生成 RSS 的代码示例：

代码如下:

立即学习“PHP免费学习笔记（深入）”；

/**
** php 动态生成 RSS 类
**/
define("TIME_ZONE","");
define("FEEDCREATOR_VERSION","www.jb51.net");//您的网址
class FeedItem extends HtmlDescribable{
var $title,$description,$link;
var $author,$authorEmail,$image,$category,$comments,$guid,$source,$creator;
var $date;
var $additionalElements=Array();
}

class FeedImage extends HtmlDescribable{
var $title,$url,$link;
var $width,$height,$description;
}

class HtmlDescribable{
var $descriptionHtmlSyndicated;
var $descriptionTruncSize;

function getDescription(){
$descriptionField=new FeedHtmlField($this->description);
$descriptionField->syndicateHtml=$this->descriptionHtmlSyndicated;
$descriptionField->truncSize=$this->descriptionTruncSize;
return $descriptionField->output();
}
}

class FeedHtmlField{
var $rawFieldContent;
var $truncSize,$syndicateHtml;
function FeedHtmlField($parFieldContent){
if($parFieldContent){
$this->rawFieldContent=$parFieldContent;
}
}
function output(){
if(!$this->rawFieldContent){
$result="";
} elseif($this->syndicateHtml){
$result="rawFieldContent."]]>";
}else{
if($this->truncSize and is_int($this->truncSize)){
$result=FeedCreator::iTrunc(htmlspecialchars($this->rawFieldContent),$this->truncSize);
}else{
$result=htmlspecialchars($this->rawFieldContent);
}
}
return $result;
}
}

class UniversalFeedCreator extends FeedCreator{
var $_feed;
function _setFormat($format){
switch (strtoupper($format)){
case "2.0":
// fall through
case "RSS2.0":
$this->_feed=new RSSCreator20();
break;
case "0.91":
// fall through
case "RSS0.91":
$this->_feed=new RSSCreator091();
break;
default:
$this->_feed=new RSSCreator091();
break;
}
$vars=get_object_vars($this);
foreach ($vars as $key => $value){
// prevent overwriting of properties "contentType","encoding"; do not copy "_feed" itself
if(!in_array($key, array("_feed","contentType","encoding"))){
$this->_feed->{$key}=$this->{$key};
}
}
}

function createFeed($format="RSS0.91"){
$this->_setFormat($format);
return $this->_feed->createFeed();
}

function saveFeed($format="RSS0.91",$filename="",$displayContents=true){
$this->_setFormat($format);
$this->_feed->saveFeed($filename,$displayContents);
}

function useCached($format="RSS0.91",$filename="",$timeout=3600){
$this->_setFormat($format);
$this->_feed->useCached($filename,$timeout);
}
}

class FeedCreator extends HtmlDescribable{
var $title,$description,$link;
var $syndicationURL,$image,$language,$copyright,$pubDate,$lastBuildDate,$editor,$editorEmail,

$webmaster,$category,$docs,$ttl,$rating,$skipHours,$skipDays;
var $xslStyleSheet="";
var $items=Array();
var $contentType="application/xml";
var $encoding="utf-8";
var $additionalElements=Array();

function addItem($item){
$this->items[]=$item;
}

function clearItem2Null(){
$this->items=array();
}

function iTrunc($string,$length){
if(strlen($string) return $string;
}

$pos=strrpos($string,".");
if($pos>=$length-4){
$string=substr($string,0,$length-4);
$pos=strrpos($string,".");
}
if($pos>=$length*0.4){
return substr($string,0,$pos+1)." ...";
}

$pos=strrpos($string," ");
if($pos>=$length-4){
$string=substr($string,0,$length-4);
$pos=strrpos($string," ");
}
if($pos>=$length*0.4){
return substr($string,0,$pos)." ...";
}

return substr($string,0,$length-4)." ...";
}

function _createGeneratorComment(){
return "\n";
}

function _createAdditionalElements($elements,$indentString=""){
$ae="";
if(is_array($elements)){
foreach($elements AS $key => $value){
$ae.= $indentString."$value$key>\n";
}
}
return $ae;
}

function _createStylesheetReferences(){
$xml="";
if($this->cssStyleSheet) $xml .= "cssStyleSheet."\" type=\"text/css\"?>\n";
if($this->xslStyleSheet) $xml .= "xslStyleSheet."\" type=\"text/xsl\"?>\n";
return $xml;
}

function createFeed(){}

function _generateFilename(){
$fileInfo=pathinfo($_SERVER["PHP_SELF"]);
return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".xml";
}

function _redirect($filename){
Header("Content-Type: ".$this->contentType."; charset=".$this->encoding."; filename=".basename($filename));
Header("Content-Disposition: inline; filename=".basename($filename));
readfile($filename,"r");
die();
}

function useCached($filename="",$timeout=3600){
$this->_timeout=$timeout;
if($filename==""){
$filename=$this->_generateFilename();
}
if(file_exists($filename) && (time()-filemtime($filename) $this->_redirect($filename);
}
}

function saveFeed($filename="",$displayContents=true){
if($filename==""){
$filename=$this->_generateFilename();
}
$feedFile=fopen($filename,"w+");
if($feedFile){
fputs($feedFile,$this->createFeed());
fclose($feedFile);
if($displayContents){
$this->_redirect($filename);
}
}else{
echo "
Error creating feed file, please check write permissions.
";
}
}
}

class FeedDate{
var $unix;
function FeedDate($dateString=""){
if($dateString=="") $dateString=date("r");
if(is_integer($dateString)){
$this->unix=$dateString;
return;
}
if(preg_match("~(?:(?:Mon|Tue|Wed|Thu|Fri|Sat|Sun),\\s+)?(\\d{1,2})\\s+([a-zA-Z]{3})\\s+(\\d{4})\\s+(\\d{2}):(\\d{2}):(\\d{2})\\s+(.*)~",$dateString,$matches)){
$months=Array("Jan"=>1,"Feb"=>2,"Mar"=>3,"Apr"=>4,"May"=>5,"Jun"=>6,"Jul"=>7,"Aug"=>8,

"Sep"=>9,"Oct"=>10,"Nov"=>11,"Dec"=>12);
$this->unix=mktime($matches[4],$matches[5],$matches[6],$months[$matches[2]],$matches[1],$matches[3]);
if(substr($matches[7],0,1)==''+'' OR substr($matches[7],0,1)==''-''){
$tzOffset=(substr($matches[7],0,3) * 60 + substr($matches[7],-2)) * 60;
}else{
if(strlen($matches[7])==1){
$oneHour=3600;
$ord=ord($matches[7]);
if($ord $tzOffset=(ord("A") - $ord - 1) * $oneHour;
} elseif($ord >= ord("M") && $matches[7]!="Z"){
$tzOffset=($ord - ord("M")) * $oneHour;
} elseif($matches[7]=="Z"){
$tzOffset=0;
}
}
switch ($matches[7]){
case "UT":
case "GMT": $tzOffset=0;
}
}
$this->unix += $tzOffset;
return;
}
if(preg_match("~(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2}):(\\d{2}):(\\d{2})(.*)~",$dateString,$matches)){
$this->unix=mktime($matches[4],$matches[5],$matches[6],$matches[2],$matches[3],$matches[1]);
if(substr($matches[7],0,1)==''+'' OR substr($matches[7],0,1)==''-''){
$tzOffset=(substr($matches[7],0,3) * 60 + substr($matches[7],-2)) * 60;
}else{
if($matches[7]=="Z"){
$tzOffset=0;
}
}
$this->unix += $tzOffset;
return;
}
$this->unix=0;
}

function rfc822(){
$date=gmdate("Y-m-d H:i:s",$this->unix);
if(TIME_ZONE!="") $date .= " ".str_replace(":","",TIME_ZONE);
return $date;
}

function iso8601(){
$date=gmdate("Y-m-d H:i:s",$this->unix);
$date=substr($date,0,22) . '':'' . substr($date,-2);
if(TIME_ZONE!="") $date=str_replace("+00:00",TIME_ZONE,$date);
return $date;
}

function unix(){
return $this->unix;
}
}

class RSSCreator10 extends FeedCreator{
function createFeed(){
$feed="encoding."\"?>\n";
$feed.= $this->_createGeneratorComment();
if($this->cssStyleSheet==""){
$cssStyleSheet="http://www.w3.org/2000/08/w3c-synd/style.css";
}
$feed.= $this->_createStylesheetReferences();
$feed.= " $feed.= " xmlns=\"http://purl.org/rss/1.0/\"\n";
$feed.= " xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n";
$feed.= " xmlns:slash=\"http://purl.org/rss/1.0/modules/slash/\"\n";
$feed.= " xmlns:dc=\"http://purl.org/dc/elements/1.1/\">\n";
$feed.= " syndicationURL."\">\n";
$feed.= " \n";
$feed.= " ".htmlspecialchars($this->description)."\n";
$feed.= " ".$this->link."\n";
if($this->image!=null){
$feed.= " image->url."\" />\n";
}
$now=new FeedDate();
$feed.= " ".htmlspecialchars($now->iso8601())."\n";
$feed.= " \n";
$feed.= " \n";
for ($i=0;$iitems);$i++){
$feed.= "

items[$i]->link)."\"/>\n";
}
$feed.= "

\n";
$feed.= " \n";
$feed.= " \n";
if($this->image!=null){
$feed.= " image->url."\">\n";
$feed.= " \n";
$feed.= " ".$this->image->link."\n";
$feed.= " ".$this->image->url."\n";
$feed.= " \n";
}
$feed.= $this->_createAdditionalElements($this->additionalElements," ");

for ($i=0;$iitems);$i++){
$feed.= " items[$i]->link)."\">\n";
//$feed.= " Posting\n";
$feed.= " text/html\n";
if($this->items[$i]->date!=null){
$itemDate=new FeedDate($this->items[$i]->date);
$feed.= " ".htmlspecialchars($itemDate->iso8601())."\n";
}
if($this->items[$i]->source!=""){
$feed.= " ".htmlspecialchars($this->items[$i]->source)."\n";
}
if($this->items[$i]->author!=""){
$feed.= " ".htmlspecialchars($this->items[$i]->author)."\n";
}
$feed.= " \n";
$feed.= " ".htmlspecialchars($this->items[$i]->link)."\n";
$feed.= " ".htmlspecialchars($this->items[$i]->description)."\n";
$feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements," ");
$feed.= " \n";
}
$feed.= "\n";
return $feed;
}
}

class RSSCreator091 extends FeedCreator{
var $RSSVersion;

function RSSCreator091(){
$this->_setRSSVersion("0.91");
$this->contentType="application/rss+xml";
}

function _setRSSVersion($version){
$this->RSSVersion=$version;
}

function createFeed(){
$feed="encoding."\"?>\n";
$feed.= $this->_createGeneratorComment();
$feed.= $this->_createStylesheetReferences();
$feed.= "RSSVersion."\">\n";
$feed.= " \n";
$feed.= " \n";
$this->descriptionTruncSize=500;
$feed.= " ".$this->getDescription()."\n";
$feed.= " ".$this->link."\n";
$now=new FeedDate();
$feed.= " ".htmlspecialchars($now->rfc822())."\n";
$feed.= " ".FEEDCREATOR_VERSION."\n";

if($this->image!=null){
$feed.= " \n";
$feed.= " ".$this->image->url."\n";
$feed.= " \n";
$feed.= " ".$this->image->link."\n";
if($this->image->width!=""){
$feed.= " ".$this->image->width."\n";
}
if($this->image->height!=""){
$feed.= " ".$this->image->height."\n";
}
if($this->image->description!=""){
$feed.= " ".$this->image->getDescription()."\n";
}
$feed.= " \n";
}
if($this->language!=""){
$feed.= " ".$this->language."\n";
}
if($this->copyright!=""){
$feed.= " ".FeedCreator::iTrunc(htmlspecialchars($this->copyright),100)."\n";
}
if($this->editor!=""){
$feed.= " ".FeedCreator::iTrunc(htmlspecialchars($this->editor),100)."\n";
}
if($this->webmaster!=""){
$feed.= " ".FeedCreator::iTrunc(htmlspecialchars($this->webmaster),100)."\n";
}
if($this->pubDate!=""){
$pubDate=new FeedDate($this->pubDate);
$feed.= " ".htmlspecialchars($pubDate->rfc822())."\n";
}
if($this->category!=""){
$feed.= " ".htmlspecialchars($this->category)."\n";
}
if($this->docs!=""){
$feed.= " ".FeedCreator::iTrunc(htmlspecialchars($this->docs),500)."\n";
}
if($this->ttl!=""){
$feed.= " ".htmlspecialchars($this->ttl)."\n";
}
if($this->rating!=""){
$feed.= " ".FeedCreator::iTrunc(htmlspecialchars($this->rating),500)."\n";
}
if($this->skipHours!=""){
$feed.= " ".htmlspecialchars($this->skipHours)."\n";
}
if($this->skipDays!=""){
$feed.= " ".htmlspecialchars($this->skipDays)."\n";
}
$feed.= $this->_createAdditionalElements($this->additionalElements," ");

for ($i=0;$iitems);$i++){
$feed.= " \n";
$feed.= " \n";
$feed.= " ".htmlspecialchars($this->items[$i]->link)."\n";
$feed.= " ".$this->items[$i]->getDescription()."\n";

if($this->items[$i]->author!=""){
$feed.= " ".htmlspecialchars($this->items[$i]->author)."\n";
}
/*
// on hold
if($this->items[$i]->source!=""){
$feed.= " ".htmlspecialchars($this->items[$i]->source)."\n";
}
*/
if($this->items[$i]->category!=""){
$feed.= " ".htmlspecialchars($this->items[$i]->category)."\n";
}
if($this->items[$i]->comments!=""){
$feed.= " ".htmlspecialchars($this->items[$i]->comments)."\n";
}
if($this->items[$i]->date!=""){
$itemDate=new FeedDate($this->items[$i]->date);
$feed.= " ".htmlspecialchars($itemDate->rfc822())."\n";
}
if($this->items[$i]->guid!=""){
$feed.= " ".htmlspecialchars($this->items[$i]->guid)."\n";
}
$feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements," ");
$feed.= " \n";
}
$feed.= " \n";
$feed.= "\n";
return $feed;
}
}

class RSSCreator20 extends RSSCreator091{

function RSSCreator20(){
parent::_setRSSVersion("2.0");
}
}

使用示例：

代码如下:

立即学习“PHP免费学习笔记（深入）”；

header(''Content-Type:text/html; charset=utf-8'');
$db=mysql_connect(''127.0.0.1'',''root'',''123456'');
mysql_query("set names utf8");
mysql_select_db(''dbname'',$db);
$brs=mysql_query(''select * from article order by add_time desc limit 0,10'',$db);
$rss=new UniversalFeedCreator();
$rss->title="页面标题";
$rss->link="网址http://";
$rss->description="rss标题";
while($rowbrs=mysql_fetch_array($brs)){
$item=new FeedItem();
$item->title =$rowbrs[''subject''];
$item->link=''http://www.jb51.net/'';
$item->description =$rowbrs[''description''];
$rss->addItem($item);
}
mysql_close($db);
$rss->saveFeed("RSS2.0","rss.xml");

 

希望本文所述对大家的php程序设计有所帮助。

php生成RSS订阅的方法，phprss订阅

php生成RSS订阅的方法，phprss订阅

本文实例讲述了php生成rss订阅的方法。分享给大家供大家参考。具体分析如下：

RSS（简易信息聚合，也叫聚合内容）是一种描述和同步网站内容的格式。RSS可以是以下三个解释的其中一个： Really Simple Syndication；RDF (Resource Description Framework) Site Summary； Rich Site Summary。但其实这三个解释都是指同一种Syndication的技术。RSS目前广泛用于网上新闻频道，blog和wiki。使用RSS订阅能更快地获取信息，网站提供RSS输出，有利于让用户获取网站内容的最新更新。网络用户可以在客户端借助于支持RSS的聚合工具软件，在不打开网站内容页面的情况下阅读支持RSS输出的网站内容。
从技术上来说一个RSS文件就是一段规范的XML数据，该文件一般以rss，xml或者rdf作为后缀，下面是一段 rss 文件的内容示例：

复制代码 代码如下:

http://www.bkjia.com/
帮客之家


网站地址/rss
New RSS tutorial on W3School



网站地址/xml
New XML tutorial on W3School

下面分享一段使用 php 动态生成 RSS 的代码示例：

复制代码 代码如下:

/**
** php 动态生成 RSS 类
**/
define("TIME_ZONE","");
define("FEEDCREATOR_VERSION","www.jb51.net");//您的网址
class FeedItem extends HtmlDescribable{
    var $title,$description,$link;
    var $author,$authorEmail,$image,$category,$comments,$guid,$source,$creator;
    var $date;
    var $additionalElements=Array();
}
 
class FeedImage extends HtmlDescribable{
    var $title,$url,$link;
    var $width,$height,$description;
}
 
class HtmlDescribable{
    var $descriptionHtmlSyndicated;
    var $descriptionTruncSize;
 
    function getDescription(){
        $descriptionField=new FeedHtmlField($this->description);
        $descriptionField->syndicateHtml=$this->descriptionHtmlSyndicated;
        $descriptionField->truncSize=$this->descriptionTruncSize;
        return $descriptionField->output();
    }
}
 
class FeedHtmlField{
    var $rawFieldContent;
    var $truncSize,$syndicateHtml;
    function FeedHtmlField($parFieldContent){
        if($parFieldContent){
            $this->rawFieldContent=$parFieldContent;
        }
    }
    function output(){
        if(!$this->rawFieldContent){
            $result="";
        }    elseif($this->syndicateHtml){
            $result="rawFieldContent."]]>";
        }else{
            if($this->truncSize and is_int($this->truncSize)){
                $result=FeedCreator::iTrunc(htmlspecialchars($this->rawFieldContent),$this->truncSize);
            }else{
                $result=htmlspecialchars($this->rawFieldContent);
            }
        }
        return $result;
    }
}
 
class UniversalFeedCreator extends FeedCreator{
    var $_feed;
    function _setFormat($format){
        switch (strtoupper($format)){
            case "2.0":
                // fall through
            case "RSS2.0":
                $this->_feed=new RSSCreator20();
                break;
            case "0.91":
                // fall through
            case "RSS0.91":
                $this->_feed=new RSSCreator091();
                break;
            default:
                $this->_feed=new RSSCreator091();
                break;
        }
        $vars=get_object_vars($this);
        foreach ($vars as $key => $value){
            // prevent overwriting of properties "contentType","encoding"; do not copy "_feed" itself
            if(!in_array($key, array("_feed","contentType","encoding"))){
                $this->_feed->{$key}=$this->{$key};
            }
        }
    }
 
    function createFeed($format="RSS0.91"){
        $this->_setFormat($format);
        return $this->_feed->createFeed();
    }
 
    function saveFeed($format="RSS0.91",$filename="",$displayContents=true){
        $this->_setFormat($format);
        $this->_feed->saveFeed($filename,$displayContents);
    }
 
    function useCached($format="RSS0.91",$filename="",$timeout=3600){
        $this->_setFormat($format);
        $this->_feed->useCached($filename,$timeout);
    }
}
 
class FeedCreator extends HtmlDescribable{
    var $title,$description,$link;
    var $syndicationURL,$image,$language,$copyright,$pubDate,$lastBuildDate,$editor,$editorEmail,$webmaster,$category,$docs,$ttl,$rating,$skipHours,$skipDays;
    var $xslStyleSheet="";
    var $items=Array();
    var $contentType="application/xml";
    var $encoding="utf-8";
    var $additionalElements=Array();
 
    function addItem($item){
        $this->items[]=$item;
    }
 
    function clearItem2Null(){
        $this->items=array();
    }
 
    function iTrunc($string,$length){
        if(strlen($string)             return $string;
        }
 
        $pos=strrpos($string,".");
        if($pos>=$length-4){
            $string=substr($string,0,$length-4);
            $pos=strrpos($string,".");
        }
        if($pos>=$length*0.4){
            return substr($string,0,$pos+1)." ...";
        }
 
        $pos=strrpos($string," ");
        if($pos>=$length-4){
            $string=substr($string,0,$length-4);
            $pos=strrpos($string," ");
        }
        if($pos>=$length*0.4){
            return substr($string,0,$pos)." ...";
        }
 
        return substr($string,0,$length-4)." ...";
    }
 
    function _createGeneratorComment(){
        return "\n";
    }
 
    function _createAdditionalElements($elements,$indentString=""){
        $ae="";
        if(is_array($elements)){
            foreach($elements AS $key => $value){
                $ae.= $indentString."$value$key>\n";
            }
        }
        return $ae;
    }
 
    function _createStylesheetReferences(){
        $xml="";
        if($this->cssStyleSheet) $xml .= "cssStyleSheet."\" type=\"text/css\"?>\n";
        if($this->xslStyleSheet) $xml .= "xslStyleSheet."\" type=\"text/xsl\"?>\n";
        return $xml;
    }
 
    function createFeed(){}
 
    function _generateFilename(){
        $fileInfo=pathinfo($_SERVER["PHP_SELF"]);
        return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".xml";
    }
 
    function _redirect($filename){
        Header("Content-Type: ".$this->contentType."; charset=".$this->encoding."; filename=".basename($filename));
        Header("Content-Disposition: inline; filename=".basename($filename));
        readfile($filename,"r");
        die();
    }
 
    function useCached($filename="",$timeout=3600){
        $this->_timeout=$timeout;
        if($filename==""){
            $filename=$this->_generateFilename();
        }
        if(file_exists($filename) && (time()-filemtime($filename)             $this->_redirect($filename);
        }
    }
 
    function saveFeed($filename="",$displayContents=true){
        if($filename==""){
            $filename=$this->_generateFilename();
        }
        $feedFile=fopen($filename,"w+");
        if($feedFile){
            fputs($feedFile,$this->createFeed());
            fclose($feedFile);
            if($displayContents){
                $this->_redirect($filename);
            }
        }else{
            echo "
Error creating feed file, please check write permissions.
";
        }
    }
}
 
class FeedDate{
    var $unix;
    function FeedDate($dateString=""){
        if($dateString=="") $dateString=date("r");
        if(is_integer($dateString)){
            $this->unix=$dateString;
            return;
        }
        if(preg_match("~(?:(?:Mon|Tue|Wed|Thu|Fri|Sat|Sun),\\s+)?(\\d{1,2})\\s+([a-zA-Z]{3})\\s+(\\d{4})\\s+(\\d{2}):(\\d{2}):(\\d{2})\\s+(.*)~",$dateString,$matches)){
            $months=Array("Jan"=>1,"Feb"=>2,"Mar"=>3,"Apr"=>4,"May"=>5,"Jun"=>6,"Jul"=>7,"Aug"=>8,"Sep"=>9,"Oct"=>10,"Nov"=>11,"Dec"=>12);
            $this->unix=mktime($matches[4],$matches[5],$matches[6],$months[$matches[2]],$matches[1],$matches[3]);
            if(substr($matches[7],0,1)==''+'' OR substr($matches[7],0,1)==''-''){
                $tzOffset=(substr($matches[7],0,3) * 60 + substr($matches[7],-2)) * 60;
            }else{
                if(strlen($matches[7])==1){
                    $oneHour=3600;
                    $ord=ord($matches[7]);
                    if($ord                         $tzOffset=(ord("A") - $ord - 1) * $oneHour;
                    } elseif($ord >= ord("M") && $matches[7]!="Z"){
                        $tzOffset=($ord - ord("M")) * $oneHour;
                    } elseif($matches[7]=="Z"){
                        $tzOffset=0;
                    }
                }
                switch ($matches[7]){
                    case "UT":
                    case "GMT":    $tzOffset=0;
                }
            }
            $this->unix += $tzOffset;
            return;
        }
        if(preg_match("~(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2}):(\\d{2}):(\\d{2})(.*)~",$dateString,$matches)){
            $this->unix=mktime($matches[4],$matches[5],$matches[6],$matches[2],$matches[3],$matches[1]);
            if(substr($matches[7],0,1)==''+'' OR substr($matches[7],0,1)==''-''){
                $tzOffset=(substr($matches[7],0,3) * 60 + substr($matches[7],-2)) * 60;
            }else{
                if($matches[7]=="Z"){
                    $tzOffset=0;
                }
            }
            $this->unix += $tzOffset;
            return;
        }
        $this->unix=0;
    }
 
    function rfc822(){
        $date=gmdate("Y-m-d H:i:s",$this->unix);
        if(TIME_ZONE!="") $date .= " ".str_replace(":","",TIME_ZONE);
        return $date;
    }
 
    function iso8601(){
        $date=gmdate("Y-m-d H:i:s",$this->unix);
        $date=substr($date,0,22) . '':'' . substr($date,-2);
        if(TIME_ZONE!="") $date=str_replace("+00:00",TIME_ZONE,$date);
        return $date;
    }
 
    function unix(){
        return $this->unix;
    }
}
 
class RSSCreator10 extends FeedCreator{
    function createFeed(){
        $feed="encoding."\"?>\n";
        $feed.= $this->_createGeneratorComment();
        if($this->cssStyleSheet==""){
            $cssStyleSheet="http://www.w3.org/2000/08/w3c-synd/style.css";
        }
        $feed.= $this->_createStylesheetReferences();
        $feed.= "         $feed.= "    xmlns=\"http://purl.org/rss/1.0/\"\n";
        $feed.= "    xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n";
        $feed.= "    xmlns:slash=\"http://purl.org/rss/1.0/modules/slash/\"\n";
        $feed.= "    xmlns:dc=\"http://purl.org/dc/elements/1.1/\">\n";
        $feed.= "    syndicationURL."\">\n";
        $feed.= "        \n";
        $feed.= "        ".htmlspecialchars($this->description)."\n";
        $feed.= "        ".$this->link."\n";
        if($this->image!=null){
            $feed.= "        image->url."\" />\n";
        }
        $now=new FeedDate();
        $feed.= "       ".htmlspecialchars($now->iso8601())."\n";
        $feed.= "        \n";
        $feed.= "            \n";
        for ($i=0;$iitems);$i++){
            $feed.= "               

items[$i]->link)."\"/>\n";
        }
        $feed.= "           

\n";
        $feed.= "        \n";
        $feed.= "    \n";
        if($this->image!=null){
            $feed.= "    image->url."\">\n";
            $feed.= "        \n";
            $feed.= "        ".$this->image->link."\n";
            $feed.= "        ".$this->image->url."\n";
            $feed.= "    \n";
        }
        $feed.= $this->_createAdditionalElements($this->additionalElements,"    ");
 
        for ($i=0;$iitems);$i++){
            $feed.= "    items[$i]->link)."\">\n";
            //$feed.= "        Posting\n";
            $feed.= "        text/html\n";
            if($this->items[$i]->date!=null){
                $itemDate=new FeedDate($this->items[$i]->date);
                $feed.= "        ".htmlspecialchars($itemDate->iso8601())."\n";
            }
            if($this->items[$i]->source!=""){
                $feed.= "        ".htmlspecialchars($this->items[$i]->source)."\n";
            }
            if($this->items[$i]->author!=""){
                $feed.= "        ".htmlspecialchars($this->items[$i]->author)."\n";
            }
            $feed.= "        \n";
            $feed.= "        ".htmlspecialchars($this->items[$i]->link)."\n";
            $feed.= "        ".htmlspecialchars($this->items[$i]->description)."\n";
            $feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements,"        ");
            $feed.= "    \n";
        }
        $feed.= "\n";
        return $feed;
    }
}
 
class RSSCreator091 extends FeedCreator{
    var $RSSVersion;
 
    function RSSCreator091(){
        $this->_setRSSVersion("0.91");
        $this->contentType="application/rss+xml";
    }
 
    function _setRSSVersion($version){
        $this->RSSVersion=$version;
    }
 
    function createFeed(){
        $feed="encoding."\"?>\n";
        $feed.= $this->_createGeneratorComment();
        $feed.= $this->_createStylesheetReferences();
        $feed.= "RSSVersion."\">\n";
        $feed.= "    \n";
        $feed.= "        \n";
        $this->descriptionTruncSize=500;
        $feed.= "        ".$this->getDescription()."\n";
        $feed.= "        ".$this->link."\n";
        $now=new FeedDate();
        $feed.= "        ".htmlspecialchars($now->rfc822())."\n";
        $feed.= "        ".FEEDCREATOR_VERSION."\n";
 
        if($this->image!=null){
            $feed.= "        \n";
            $feed.= "            ".$this->image->url."\n";
            $feed.= "            \n";
            $feed.= "            ".$this->image->link."\n";
            if($this->image->width!=""){
                $feed.= "            ".$this->image->width."\n";
            }
            if($this->image->height!=""){
                $feed.= "            ".$this->image->height."\n";
            }
            if($this->image->description!=""){
                $feed.= "            ".$this->image->getDescription()."\n";
            }
            $feed.= "        \n";
        }
        if($this->language!=""){
            $feed.= "        ".$this->language."\n";
        }
        if($this->copyright!=""){
            $feed.= "        ".FeedCreator::iTrunc(htmlspecialchars($this->copyright),100)."\n";
        }
        if($this->editor!=""){
            $feed.= "        ".FeedCreator::iTrunc(htmlspecialchars($this->editor),100)."\n";
        }
        if($this->webmaster!=""){
            $feed.= "        ".FeedCreator::iTrunc(htmlspecialchars($this->webmaster),100)."\n";
        }
        if($this->pubDate!=""){
            $pubDate=new FeedDate($this->pubDate);
            $feed.= "        ".htmlspecialchars($pubDate->rfc822())."\n";
        }
        if($this->category!=""){
            $feed.= "        ".htmlspecialchars($this->category)."\n";
        }
        if($this->docs!=""){
            $feed.= "        ".FeedCreator::iTrunc(htmlspecialchars($this->docs),500)."\n";
        }
        if($this->ttl!=""){
            $feed.= "        ".htmlspecialchars($this->ttl)."\n";
        }
        if($this->rating!=""){
            $feed.= "        ".FeedCreator::iTrunc(htmlspecialchars($this->rating),500)."\n";
        }
        if($this->skipHours!=""){
            $feed.= "        ".htmlspecialchars($this->skipHours)."\n";
        }
        if($this->skipDays!=""){
            $feed.= "        ".htmlspecialchars($this->skipDays)."\n";
        }
        $feed.= $this->_createAdditionalElements($this->additionalElements,"    ");
 
        for ($i=0;$iitems);$i++){
            $feed.= "        \n";
            $feed.= "            \n";
            $feed.= "            ".htmlspecialchars($this->items[$i]->link)."\n";
            $feed.= "            ".$this->items[$i]->getDescription()."\n";
 
            if($this->items[$i]->author!=""){
                $feed.= "            ".htmlspecialchars($this->items[$i]->author)."\n";
            }
            /*
             // on hold
             if($this->items[$i]->source!=""){
             $feed.= "            ".htmlspecialchars($this->items[$i]->source)."\n";
             }
             */
            if($this->items[$i]->category!=""){
                $feed.= "            ".htmlspecialchars($this->items[$i]->category)."\n";
            }
            if($this->items[$i]->comments!=""){
                $feed.= "            ".htmlspecialchars($this->items[$i]->comments)."\n";
            }
            if($this->items[$i]->date!=""){
                $itemDate=new FeedDate($this->items[$i]->date);
                $feed.= "            ".htmlspecialchars($itemDate->rfc822())."\n";
            }
            if($this->items[$i]->guid!=""){
                $feed.= "            ".htmlspecialchars($this->items[$i]->guid)."\n";
            }
            $feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements,"        ");
            $feed.= "        \n";
        }
        $feed.= "    \n";
        $feed.= "\n";
        return $feed;
    }
}
 
class RSSCreator20 extends RSSCreator091{
 
    function RSSCreator20(){
        parent::_setRSSVersion("2.0");
    }
}

使用示例：

复制代码 代码如下:

header(''Content-Type:text/html; charset=utf-8'');
$db=mysql_connect(''127.0.0.1'',''root'',''123456'');
mysql_query("set names utf8");
mysql_select_db(''dbname'',$db);
$brs=mysql_query(''select * from article order by add_time desc limit 0,10'',$db);
$rss=new UniversalFeedCreator();
$rss->title="页面标题";
$rss->link="网址http://";
$rss->description="rss标题";
while($rowbrs=mysql_fetch_array($brs)){
    $item=new FeedItem();
    $item->title =$rowbrs[''subject''];
    $item->link=''http://www.bkjia.com/'';
    $item->description =$rowbrs[''description''];
    $rss->addItem($item);
}
mysql_close($db);
$rss->saveFeed("RSS2.0","rss.xml");

希望本文所述对大家的php程序设计有所帮助。

php生成RSS订阅的方法，phprss订阅_PHP教程

php生成RSS订阅的方法，phprss订阅

本文实例讲述了php生成rss订阅的方法。分享给大家供大家参考。具体分析如下：

RSS（简易信息聚合，也叫聚合内容）是一种描述和同步网站内容的格式。RSS可以是以下三个解释的其中一个： Really Simple Syndication；RDF (Resource Description Framework) Site Summary； Rich Site Summary。但其实这三个解释都是指同一种Syndication的技术。RSS目前广泛用于网上新闻频道，blog和wiki。使用RSS订阅能更快地获取信息，网站提供RSS输出，有利于让用户获取网站内容的最新更新。网络用户可以在客户端借助于支持RSS的聚合工具软件，在不打开网站内容页面的情况下阅读支持RSS输出的网站内容。
从技术上来说一个RSS文件就是一段规范的XML数据，该文件一般以rss，xml或者rdf作为后缀，下面是一段 rss 文件的内容示例：

复制代码 代码如下:

http://www.bkjia.com/
帮客之家


网站地址/rss
New RSS tutorial on W3School



网站地址/xml
New XML tutorial on W3School