phpajax异步读取rss文档数据_PHP

本文实例为大家分享了php ajax异步读取rss文档数据的相关代码，供大家参考，具体内容如下

代码如下：

index.html

 
  
 
 
  
Please Select an option to get RSS:
  
  
  
  
  RSS-feeds  
 

rss.php

<?php
 $q=$_GET["q"]; 
 if($q=="cnn") {
  $xml=("http://rss.cnn.com/rss/cnn_topstories.rss");
 } 
 elseif($q=="bbc") {
  $xml=("http://newsrss.bbc.co.uk/rss/newsonline_world_edition/americas/rss.xml");
 } 
 elseif($q="pcw"){
  $xml=("http://www.pcworld.com/index.rss");
 }
 $xmlDoc = new DOMDocument();
 $xmlDoc->load($xml); 
 $channel=$xmlDoc->getElementsByTagName('channel')->item(0);
 $channel_title = $channel->getElementsByTagName('title')->item(0)->childNodes->item(0)->nodeValue;
 $channel_link = $channel->getElementsByTagName('link')->item(0)->childNodes->item(0)->nodeValue;
 $channel_desc = $channel->getElementsByTagName('description')->item(0)->childNodes->item(0)->nodeValue;
 echo("
" . $channel_title . "");
 echo("
");
 echo($channel_desc . "
");
 $x=$xmlDoc->getElementsByTagName('item');
 for ($i=0; $i<=2; $i++) {
  $item_title=$x->item($i)->getElementsByTagName('title')->item(0)->childNodes->item(0)->nodeValue;
  $item_link=$x->item($i)->getElementsByTagName('link') ->item(0)->childNodes->item(0)->nodeValue;
  $item_desc=$x->item($i)->getElementsByTagName('description') ->item(0)->childNodes->item(0)->nodeValue;
  echo ("
" . $item_title . "");
  echo ("
");
  echo ($item_desc . "
");
 }
?>

以上就是本文的全部内容，希望对大家学习php程序设计有所帮助。