php 完美的rss 生成类

时间：2015-01-23 来源：西部数据作者：西部数据

<?php

class rssGenerator_rss

{

    var $rss_version = '2.0';

    var $encoding = '';

    var $stylesheet = '';

    function cData($str)

    {

        return '<![CDATA[ ' . $str . ' ]]>';

    }

    function createFeed($channel)

    {

        $selfUrl = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != 'on' ? 'http://' : 'https教程://');

        $selfUrl .= $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];

        $rss = '<?xml version="1.0"';

        if (!emptyempty($this->encoding)) {

            $rss .= ' encoding="' . $this->encoding . '"';

        }

        $rss .= '?>' . " ";

        if (!emptyempty($this->stylesheet)) {

            $rss .= $this->stylesheet . " ";

        }

        $rss .= '' . " ";

        $rss .= '<rss version="' . $this->rss_version . '" xmlns:atom="http://www.w3.org/2005/Atom">' . " ";

        $rss .= '  <channel>' . " ";

     $rss .= '    <atom:link href="' . ($channel->atomLinkHref ? $channel->atomLinkHref : $selfUrl) . '" rel="self" type="application/rss+xml" />' . " ";

        $rss .= '    <title>' . $channel->title . '</title>' . " ";

        $rss .= '    <link>' . $channel->link . '</link>' . " ";

        $rss .= '    <description>' . $channel->description . '</description>' . " ";

        if (!emptyempty($channel->language)) {

            $rss .= '    <language>' . $channel->language . '</language>' . " ";

        }

        if (!emptyempty($channel->copyright)) {

            $rss .= '    <copyright>' . $channel->copyright . '</copyright>' . " ";

        }

        if (!emptyempty($channel->managingEditor)) {

            $rss .= '    <managingEditor>' . $channel->managingEditor . '</managingEditor>' . " ";

        }

        if (!emptyempty($channel->webMaster)) {

            $rss .= '    <webMaster>' . $channel->webMaster . '</webMaster>' . " ";

        }

        if (!emptyempty($channel->pubDate)) {

            $rss .= '    <pubDate>' . $channel->pubDate . '</pubDate>' . " ";

        }

        if (!emptyempty($channel->lastBuildDate)) {

            $rss .= '    <lastBuildDate>' . $channel->lastBuildDate . '</lastBuildDate>' . " ";

        }

        foreach ($channel->categories as $category) {

            $rss .= '    <category';

            if (!emptyempty($category['domain'])) {

                $rss .= ' domain="' . $category['domain'] . '"';

            }

            $rss .= '>' . $category['name'] . '</category>' . " ";

        }

        if (!emptyempty($channel->generator)) {

            $rss .= '    <generator>' . $channel->generator . '</generator>' . " ";

        }

        if (!emptyempty($channel->docs)) {

            $rss .= '    <docs>' . $channel->docs . '</docs>' . " ";

        }

        if (!emptyempty($channel->ttl)) {

            $rss .= '    <ttl>' . $channel->ttl . '</ttl>' . " ";

        }

        if (sizeof($channel->skipHours)) {

            $rss .= '    <skipHours>' . " ";

            foreach ($channel->skipHours as $hour) {

                $rss .= '      <hour>' . $hour . '</hour>' . " ";

            }

            $rss .= '    </skipHours>' . " ";

        }

        if (sizeof($channel->skipDays)) {

            $rss .= '    <skipDays>' . " ";

            foreach ($channel->skipDays as $day) {

                $rss .= '      <day>' . $day . '</day>' . " ";

            }

            $rss .= '    </skipDays>' . " ";

        }

        if (!emptyempty($channel->image)) {

            $image = $channel->image;

            $rss .= '    <image>' . " ";

            $rss .= '      <url>' . $image->url . '</url>' . " ";

            $rss .= '      <title>' . $image->title . '</title>' . " ";

            $rss .= '      <link>' . $image->link . '</link>' . " ";

            if ($image->width) {

                $rss .= '      <width>' . $image->width . '</width>' . " ";

            }

            if ($image->height) {

                $rss .= '      <height>' . $image->height . '</height>' . " ";

            }

            if (!emptyempty($image->description)) {

                $rss .= '      <description>' . $image->description . '</description>' . " ";

            }

            $rss .= '    </image>' . " ";

        }

        if (!emptyempty($channel->textInput)) {

            $textInput = $channel->textInput;

            $rss .= '    <textInput>' . " ";

            $rss .= '      <title>' . $textInput->title . '</title>' . " ";

            $rss .= '      <description>' . $textInput->description . '</description>' . " ";

            $rss .= '      <name>' . $textInput->name . '</name>' . " ";

            $rss .= '      <link>' . $textInput->link . '</link>' . " ";

            $rss .= '    </textInput>' . " ";

        }

        if (!emptyempty($channel->cloud_domain) || !emptyempty($channel->cloud_path) || !emptyempty($channel->cloud_registerProcedure) || !emptyempty($channel->cloud_protocol)) {

            $rss .= '    <cloud domain="' . $channel->cloud_domain . '" ';

            $rss .= 'port="' . $channel->cloud_port . '" path="' . $channel->cloud_path . '" ';

            $rss .= 'registerProcedure="' . $channel->cloud_registerProcedure . '" ';

            $rss .= 'protocol="' . $channel->cloud_protocol . '" />' . " ";

        }

        if (!emptyempty($channel->extraXML)) {

            $rss .= $channel->extraXML . " ";

        }

        foreach ($channel->items as $item) {

            $rss .= '    <item>' . " ";

            if (!emptyempty($item->title)) {

                $rss .= '      <title>' . $item->title . '</title>' . " ";

            }

            if (!emptyempty($item->description)) {

                $rss .= '      <description>' . $item->description . '</description>' . " ";

            }

            if (!emptyempty($item->link)) {

                $rss .= '      <link>' . $item->link . '</link>' . " ";

            }

            if (!emptyempty($item->pubDate)) {

                $rss .= '      <pubDate>' . $item->pubDate . '</pubDate>' . " ";

            }

            if (!emptyempty($item->author)) {

                $rss .= '      <author>' . $item->author . '</author>' . " ";

            }

            if (!emptyempty($item->comments)) {

                $rss .= '      <comments>' . $item->comments . '</comments>' . " ";

            }

            if (!emptyempty($item->guid)) {

                $rss .= '      <guid isPermaLink="';

                $rss .= ($item->guid_isPermaLink ? 'true' : 'false') . '">';

                $rss .= $item->guid . '</guid>' . " ";

            }

            if (!emptyempty($item->source)) {

                $rss .= '      <source url="' . $item->source_url . '">';

                $rss .= $item->source . '</source>' . " ";

            }

            if (!emptyempty($item->enclosure_url) || !emptyempty($item->enclosure_type)) {

                $rss .= '      <enclosure url="' . $item->enclosure_url . '" ';

                $rss .= 'length="' . $item->enclosure_length . '" ';

                $rss .= 'type="' . $item->enclosure_type . '" />' . " ";

            }

            foreach ($item->categories as $category) {

                $rss .= '      <category';

                if (!emptyempty($category['domain'])) {

                    $rss .= ' domain="' . $category['domain'] . '"';

                }

                $rss .= '>' . $category['name'] . '</category>' . " ";

            }

            $rss .= '    </item>' . " ";

        }

        $rss .= '  </channel>' . " ";

        return $rss .= '</rss>';

    }

}

class rssGenerator_channel

{

    var $atomLinkHref = '';

    var $title = '';

    var $link = '';

    var $description = '';

    var $language = '';

    var $copyright = '';

    var $managingEditor = '';

    var $webMaster = '';

    var $pubDate = '';

    var $lastBuildDate = '';

    var $categories = array();

    var $generator = '';

    var $docs = '';

    var $ttl = '';

    var $image = '';

    var $textInput = '';

    var $skipHours = array();

    var $skipDays = array();

    var $cloud_domain = '';

    var $cloud_port = '80';

    var $cloud_path = '';

    var $cloud_registerProcedure = '';

    var $cloud_protocol = '';

    var $items = array();

    var $extraXML = '';

}

class rssGenerator_image

{

    var $url = '';

    var $title = '';

    var $link = '';

    var $width = '88';

    var $height = '31';

    var $description = '';

}

class rssGenerator_textInput

{

    var $title = '';

    var $description = '';

    var $name = '';

    var $link = '';

}

class rssGenerator_item

{

    var $title = '';

    var $description = '';

    var $link = '';

    var $author = '';

    var $pubDate = '';

    var $comments = '';

    var $guid = '';

    var $guid_isPermaLink = true;

    var $source = '';

    var $source_url = '';

    var $enclosure_url = '';

    var $enclosure_length = '0';

    var $enclosure_type = '';

    var $categories = array();

}

//开源代码phpfensi.com

?>

php使用实例如下:

<?php

require_once 'rss_generator.inc.php';

$rss_channel = new rssGenerator_channel();

$rss_channel->atomLinkHref = '';

$rss_channel->title = 'My News';

$rss_channel->link = 'http://phpfensi.com/news.php';

$rss_channel->description = 'The latest news about web-development.';

$rss_channel->language = 'en-us';

$rss_channel->generator = 'PHP RSS Feed Generator';

$rss_channel->managingEditor = 'editor@mysite.com (Alex Jefferson)';

$rss_channel->webMaster = 'webmaster@mysite.com (Vagharshak Tozalakyan)';

$item = new rssGenerator_item();

$item->title = 'New website launched';

$item->description = 'Today I finaly launch a new website.';

$item->link = 'http://phpfensi.com';

$item->guid = 'http://phpfensi.com';

$item->pubDate = 'Tue, 07 Mar 2006 00:00:01 GMT';

$rss_channel->items[] = $item;

$item = new rssGenerator_item();

$item->title = 'Another website launched';

$item->description = 'Just another website launched.';

$item->link = 'http://phpfensi.com';

$item->guid = 'http://phpfensi.com';

$item->pubDate = 'Wed, 08 Mar 2006 00:00:01 GMT';

$rss_channel->items[] = $item;

$rss_feed = new rssGenerator_rss();

$rss_feed->encoding = 'UTF-8';

$rss_feed->version = '2.0';

header('Content-Type: text/xml');

echo $rss_feed->createFeed($rss_channel);

?>