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PHP xml应用之RSS 订阅

2018-01-22 13:25 309 查看

blog.html（提供订阅的页面）:

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<a href="rss.php"><img src="rss.jpg" alt=""></a>
</body>
</html>

rss.php（从数据库生成订阅的内容(xml),并显示xml）:

<?php
//连接数据库取出数据
mysql_connect('localhost','root','123456');
mysql_select_db('blog');
mysql_query("set names utf8");
$sql = "select * from blog";
$res = mysql_query($sql);
$blogs = array();
while ($row = mysql_fetch_assoc($res)) {
$blogs[] = $row;
}

//生成rss格式的xml文档
$xml = "<?xml version='1.0' encoding='UTF-8'?>";
$xml .= "<rss version='2.0'>";
$xml .= "<channel>";
$xml .= "<title>PHP学院</title>";
$xml .= "<link>http://php.baidu.cn</link>";
$xml .= "<description>学PHP</description>";
$xml .= "<language>zn-cn</language>";
foreach ($blogs as $blog) {
$xml .= "<item>";
$xml .= "<title>{$blog['title']}</title>";
$xml .= "<link>http://php.baidu.cn/{$blog['id']}.php</link>";
$xml .= "<pubDate>".date('Y-m-d H:i:s',$blog['add_time'])."</pubDate>";
$xml .= "<description>{$blog['description']}</description>";
$xml .= "</item>";
}
$xml .= "</channel>";
$xml .= "</rss>";
header("Content-Type:text/xml;charset=utf-8");
echo $xml;

rss.xml（订阅的内容(本质上就是一个xml)）:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE rss SYSTEM 'rss.dtd'>
<rss version='2.0'>
<channel>
<title>PHP学院</title>
<link>http://php.baidu.cn</link>
<description>学PHP</description>
<language>zn-cn</language>
<item>
<title>标题1</title>
<link>http://php.baidu.cn/1.php</link>
<pubDate>2013-05-09 10:23:40</pubDate>
<description>正文1</description>
</item>
<item>
<title>标题2</title>
<link>http://php.baidu.cn/2.php</link>
<pubDate>2013-05-09 10:23:40</pubDate>
<description>正文2</description>
</item>
</channel>
</rss>

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标签： php xml rss

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