[原创]为找房方便 ,将sohu焦点的 rss 改成全文的.

<?php

header("Content-type: text/html; charset=utf-8");

ini_set("max_excution_time"  ,3600);

$url = "http://sz.focus.cn/common/xml/rss/news/hot.php";



$newItemArr = parseItems( $url );

$xmlItemContent = makeRssItemString( $newItemArr ); //重新生成item 内容,将下载内容替换descript.



//rss xml 的头尾字符串

$xmlPre = '

<?xml version="1.0" encoding="GBK"?>

<?xml-stylesheet type="text/xsl" href="/common/xml/xsl/rss.xsl" media="all"?>

<?xml-stylesheet type="text/css" href="/common/xml/css/rss.css" media="all"?>



<rss version="2.0"

xmlns:focus="http://house.focus.cn"

xmlns:F="http://house.focus.cn"

docType="rss"

F:docType="rss"

>

<channel

pageIndex=""

pageSize="20"

recordCount=""

F:pageIndex=""

F:pageSize="20"

F:recordCount="">

<image>

<title><![CDATA[热点新闻-搜狐焦点网深圳站 ]]></title>

<link>http://sz.focus.cn/newscenter/xwsy.html</link>

<url>http://images.house.focus.cn/img/newhouselogo.gif</url>

</image>

<title>热点新闻-搜狐焦点网深圳站</title>

<link>http://sz.focus.cn/newscenter/xwsy.html</link>

<description><![CDATA[提供最全面最及时的中国房地产新闻资讯 ]]></description>

<copyright>Copyright 2012, sohu.com Inc., all rights reserved</copyright>

<language>zh-cn</language>

<lastBuildDate>Mon, 02 Jul 2012 21:44:21 +0800</lastBuildDate>

<pubDate>Mon, 02 Jul 2012 21:44:21 +0800</pubDate>

<category>地产综合</category>

<ttl>30</ttl>';

$xmlAppend = '</channel></rss>';





$xmlOutput = $xmlPre . $xmlItemContent . $xmlAppend ;

echo $xmlOutput;





/**

 * @param $url

 * @return array itemObj

 */

function parseItems( $url )

{

    $xmlObj = simplexml_load_file( $url );

    $items = $xmlObj -> channel -> item;



    $resultArr = array();



    foreach( $items as  $item ):

        $resultArr []= makeRssItemObj( $item );

    endforeach;



    return $resultArr;

}







/**

 * @param $item

 * @return itemObj

 */

function makeRssItemObj( $item )

{

 //   $item->link = "demo.html";

    $urlContent = fileGetContent( $item->link );  //如果不支持curl 就用file_get_content 或者socket 连接来实现.



    $urlContent = @iconv("gb2312","utf-8",$urlContent);



   // $content = iconv("gb2312" , "utf-8" , $content);

    preg_match("/id=\"newscontent\">([\d\D]+)<div\s+class=\"clear\">/iU" , $urlContent , $matchArr);



    $item->description = $matchArr[1];

    return $item;

}



/**

 * @param $itemObjArr

 * @return string

 */

function makeRssItemString( $itemObjArr )

{

   $result = "";



   foreach( $itemObjArr as $itemObj  ):

       $result .= "<item>";

           $result .= "<title><![CDATA[ $itemObj->title ]]></title>";

           $result .= "<link>$itemObj->link</link>";

           $result .= "<description><![CDATA[ $itemObj->description ]]></description>";

           $result .= "<author>mu_rain</author>";

           $result .= "<pubDate>$itemObj->pubDate</pubDate>";

       $result .= "<item>";

   endforeach;

    return  $result;

}





// ------------------------------------------------------------------------

/**

 * regulary show the string or object or json.

 * 规格化显示

 *

 * @param  $str	对象的实例

 * @package		P

 * @subpackage	String

 * @category	Putils

 * @author		mu_rain

 *  @return mixed

 */

// ------------------------------------------------------------------------

function pr($array,$title = 'DEBUG',$type = 'array' , $width = '')	{

    $title .= date("Y-m-d H:i:s");

    $widthStr = "";

    if( $width) $widthStr = "width:$width"."px";



    echo "<fieldset style=\"-moz-border-radius:5px 5px 5px 5px; -moz-box-shadow:0px 0px 10px rgba(00,00,00,0.45); border: 3px solid  transparent; padding:3px; margin-top:20px; \"><legend style=\"color: #069; margin:3px; $widthStr \">$title</legend>";

    echo "<div style = '-moz-border-radius:10px 10px 10px 10px;font-size:14px; color:#069; border:1px solid #F0FAF9;  font-size:9pt; background:#F0FAF9; padding:5px;'>";

    print("<pre>");

    if($type == 'json') {

        $array = json_decode($array);

    }

    print_r($array);

    print("</pre>");

    echo "<div>";

    echo  "</fieldset>";

}



// ------------------------------------------------------------------------

/**

 *

 * get the urlContent use curl

 * @package    KDG

 * @subpackage	common

 * @category	mu_rain

 * @author     徐兴

 */

// ------------------------------------------------------------------------

function fileGetContent($url)

{

    $ch = curl_init();

    $timeout = 30;

    curl_setopt($ch, CURLOPT_URL, $url);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);

    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

    $contents = trim(curl_exec($ch));

    curl_close($ch);

    return $contents;

}