以下包含了两个类: RSS 和 RSSItem。
创建一个新的 RSS 对象,然后用 RSSItems 填充它。支持多媒体(音频/视频文件)。

/* 实例 -----------------------------------------------

$feed = new RSS();
$feed->title       = "RSS Feed 标题";
$feed->link        = "http://runoob.com";
$feed->description = "RSS 订阅列表描述。";

$db->query($query);  // 数据库查询
$result = $db->result;
while($row = mysql_fetch_array($result, MYSQL_ASSOC))
{
    $item = new RSSItem();
    $item->title = $title;
    $item->link  = $link;
    $item->setPubDate($create_date); 
    $item->description = "<![CDATA[ $html ]]>";
    $feed->addItem($item);
}
echo $feed->serve();

---------------------------------------------------------------- */

class RSS
{

var $title;
var $link;
var $description;
var $language = "en-us";
var $pubDate;
var $items;
var $tags;

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

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

function setPubDate($when)
{
    if(strtotime($when) == false)
        $this->pubDate = date("D, d M Y H:i:s ", $when) . "GMT";
    else
        $this->pubDate = date("D, d M Y H:i:s ", strtotime($when)) . "GMT";
}

function getPubDate()
{
        if(empty($this->pubDate))
        return date("D, d M Y H:i:s ") . "GMT";
    else
        return $this->pubDate;
}

function addTag($tag, $value)
{
    $this->tags[$tag] = $value;
}

function out()
{
    $out  = $this->header();
    $out .= "<channel>\n";
    $out .= "<title>" . $this->title . "</title>\n";
    $out .= "<link>" . $this->link . "</link>\n";
    $out .= "<description>" . $this->description . "</description>\n";
    $out .= "<language>" . $this->language . "</language>\n";
    $out .= "<pubDate>" . $this->getPubDate() . "</pubDate>\n";

    foreach($this->tags as $key => $val) $out .= "<$key>$val</$key>\n";
    foreach($this->items as $item) $out .= $item->out();

    $out .= "</channel>\n";

    $out .= $this->footer();

    $out = str_replace("&", "&amp;", $out);

    return $out;
}

function serve($contentType = "application/xml")
{
    $xml = $this->out();
    header("Content-type: $contentType");
    echo $xml;
}

function header()
{
    $out  = '<?xml version="1.0" encoding="utf-8"?>' . "\n";
    $out .= '<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">' . "\n";
    return $out;
}

function footer()
{
    return '</rss>';
}

}

class RSSItem
{

var $title;
var $link;
var $description;
var $pubDate;
var $guid;
var $tags;
var $attachment;
var $length;
var $mimetype;

function RSSItem()
{ 
    $this->tags = array();
}

function setPubDate($when)
{
    if(strtotime($when) == false)
        $this->pubDate = date("D, d M Y H:i:s ", $when) . "GMT";
    else
        $this->pubDate = date("D, d M Y H:i:s ", strtotime($when)) . "GMT";
}

function getPubDate()
{
    if(empty($this->pubDate))
        return date("D, d M Y H:i:s ") . "GMT";
    else
        return $this->pubDate;
}

function addTag($tag, $value)
{
    $this->tags[$tag] = $value;
}

function out()
{
    $out .= "<item>\n";
    $out .= "<title>" . $this->title . "</title>\n";
    $out .= "<link>" . $this->link . "</link>\n";
    $out .= "<description>" . $this->description . "</description>\n";
    $out .= "<pubDate>" . $this->getPubDate() . "</pubDate>\n";

    if($this->attachment != "")
        $out .= "<enclosure url='{$this->attachment}' length='{$this->length}' type='{$this->mimetype}' />";

    if(empty($this->guid)) $this->guid = $this->link;
    $out .= "<guid>" . $this->guid . "</guid>\n";

    foreach($this->tags as $key => $val) $out .= "<$key>$val</$key\n>";
    $out .= "</item>\n";
    return $out;
}

function enclosure($url, $mimetype, $length)
{
    $this->attachment = $url;
    $this->mimetype   = $mimetype;
    $this->length     = $length;
}

}

最后编辑:2021年04月23日 ©著作权归作者所有

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