PHP-AJAX-RSS-onload
我目前正在使用W3S的RSS源阅读器: 以下是html代码:PHP-AJAX-RSS-onload,php,ajax,rss,Php,Ajax,Rss,我目前正在使用W3S的RSS源阅读器: 以下是html代码: <html> <head> <script> function showRSS(str) { if (str.length==0) { document.getElementById("rssOutput").innerHTML=""; return; } if (window.XMLHttpRequest) { // code for IE7+, Fir
<html>
<head>
<script>
function showRSS(str) {
if (str.length==0) {
document.getElementById("rssOutput").innerHTML="";
return;
}
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
} else { // code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
document.getElementById("rssOutput").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","getrss.php?q="+str,true);
xmlhttp.send();
}
</script>
</head>
<body>
<form>
<select onchange="showRSS(this.value)">
<option value="">Select an RSS-feed:</option>
<option value="Google">Google News</option>
<option value="NBC">NBC News</option>
</select>
</form>
<br>
<div id="rssOutput">RSS-feed will be listed here...</div>
</body>
</html>
函数showrs(str){
如果(str.length==0){
document.getElementById(“rssOutput”).innerHTML=“”;
返回;
}
if(window.XMLHttpRequest){
//IE7+、Firefox、Chrome、Opera、Safari的代码
xmlhttp=新的XMLHttpRequest();
}else{//IE6、IE5的代码
xmlhttp=新的ActiveXObject(“Microsoft.xmlhttp”);
}
xmlhttp.onreadystatechange=函数(){
if(xmlhttp.readyState==4&&xmlhttp.status==200){
document.getElementById(“rssOutput”).innerHTML=xmlhttp.responseText;
}
}
open(“GET”、“getrss.php?q=“+str,true”);
xmlhttp.send();
}
选择RSS源:
Google新闻
NBC新闻
RSS源将在此处列出。。。
以及PHP代码:
<?php
//get the q parameter from URL
$q=$_GET["q"];
//find out which feed was selected
if($q=="Google") {
$xml=("http://news.google.com/news?ned=us&topic=h&output=rss");
} elseif($q=="NBC") {
$xml=("http://rss.msnbc.msn.com/id/3032091/device/rss/rss.xml");
}
$xmlDoc = new DOMDocument();
$xmlDoc->load($xml);
//get elements from "<channel>"
$channel=$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;
//output elements from "<channel>"
echo("<p><a href='" . $channel_link
. "'>" . $channel_title . "</a>");
echo("<br>");
echo($channel_desc . "</p>");
//get and output "<item>" elements
$x=$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 ("<p><a href='" . $item_link
. "'>" . $item_title . "</a>");
echo ("<br>");
echo ($item_desc . "</p>");
}
?>
load($xml);
//从“”获取元素
$channel=$xmlDoc->getElementsByTagName('channel')->项(0);
$channel\u title=$channel->getElementsByTagName('title'))
->项(0)->子节点->项(0)->节点值;
$channel\u link=$channel->getElementsByTagName('link'))
->项(0)->子节点->项(0)->节点值;
$channel\u desc=$channel->getElementsByTagName('description'))
->项(0)->子节点->项(0)->节点值;
//从“”输出元素
回声();
回声(
);
回声($channel_desc.“”);
//获取并输出“”元素
$x=$xmlDoc->getElementsByTagName('item');
对于($i=0;$iitem($i)->getElementsByTagName('title'))
->项(0)->子节点->项(0)->节点值;
$item\u link=$x->item($i)->getElementsByTagName('link'))
->项(0)->子节点->项(0)->节点值;
$item_desc=$x->item($i)->getElementsByTagName('description'))
->项(0)->子节点->项(0)->节点值;
回声();
回声(
);
回声($item_desc.“”);
}
?>
我尝试的更改:
如何让Google新闻选项在网站打开时自动加载,而不必首先选择它?我找到了一个更简单的解决方案,即使用PHP的simplexml加载文件。 以下是完整的代码:
<!-- language: lang-php -->
<?php
$html = "";
$url = "http://news.google.com/news?ned=us&topic=h&output=rss";
$xml = simplexml_load_file($url);
for($i = 0; $i < 10; $i++){
$title = $xml->channel->item[$i]->title;
$link = $xml->channel->item[$i]->link;
$description = $xml->channel->item[$i]->description;
$pubDate = $xml->channel->item[$i]->pubDate;
$html .= "<a href='$link'><h3>$title</h3></a>";
$html .= "$description";
$html .= "<br />$pubDate";
}
echo $html;
?>
频道->项目[$i]->标题;
$link=$xml->channel->item[$i]->link;
$description=$xml->channel->item[$i]->description;
$pubDate=$xml->channel->item[$i]->pubDate;
$html.=”;
$html.=“$description”;
$html.=“
$pubDate”;
}
echo$html;
?>