显示来自 wordpress RSS 提要的媒体文件 [英] Display media files from a wordpress rss feed

问题描述

我正在使用 PHP 解析常规 wordpress.com 博客的 RSS 提要，以便在我的网站上显示帖子的预览.

它正确显示:标题、描述和出版日期.但我还想显示每个帖子的图片.如果我打开提要的 URL，会看到一个带有媒体文件链接"的图表，但我不知道如何访问这些链接.

您有什么建议吗?

这是我使用的代码:

load($xml);$items=$xmlDoc->getElementsByTagName('item');$max_items= 15;?><?php foreach( $items as $i => $item ):?><?phpif($i>=$max_items) 中断；$title = $item->getElementsByTagName("title")->item(0)->nodeValue;$description = $item->getElementsByTagName("description")->item(0)->nodeValue;$data = $item->getElementsByTagName("pubDate")->item(0)->nodeValue;?><div class="posts"><div class="rssentry"><h2><?php echo $title?></h2><div class="rsscontent"><?php echo html_entity_decode($description)?></div><div class="metadata"><?php echo $data?></div>

<?php endforeach;?>

非常感谢您的帮助

解决方案

PHP

load('http://testmustard.wordpress.com/feed/');$NodeList = $Document->getElementsByTagName('item');$i = 0;foreach ($NodeList 作为 $Node) {如果 ($i++ >= $maxItems) {休息;}$media = $Node->getElementsByTagNameNS('http://search.yahoo.com/mrss/', 'content');如果 ($media-> 长度 > 0) {$imageUrl = $media->item(0)->getAttribute('url');echo "$imageUrl\n";} 别的 {echo "无媒体:内容\n";}}

关键是getElementsByTagNameNS.它让您可以使用 media 命名空间，以便您可以获取内容.

I am parsing the rss feed of a regular wordpress.com blog using PHP in order to display a preview of the posts on my website.

It correctly displays: Title, Description and publication date. BUT I would like to display also the images of each post. If I open the feed's URL, there is a chart with "media files links", but I don't know how to access those links.

Do you have any suggestions?

This is the code I am using:

<?php

            $xml=("http://testmustard.wordpress.com/feed/");

            $xmlDoc = new DOMDocument();

            $xmlDoc->load($xml);

            $items=$xmlDoc->getElementsByTagName('item');
            $max_items= 15;

        ?>      

        <?php foreach( $items as $i => $item ):?>


        <?php
            if($i>=$max_items) break;

            $title = $item->getElementsByTagName( "title" )->item(0)->nodeValue; 
            $description = $item->getElementsByTagName( "description" )->item(0)->nodeValue; 
            $data = $item->getElementsByTagName( "pubDate" )->item(0)->nodeValue;
        ?>
            <div class="posts">
                <div class="rssentry">
                    <h2><?php echo $title?></h2>
                    <div class="rsscontent"><?php echo html_entity_decode($description)?></div>
                    <div class="metadata"><?php echo $data?></div>
                </div>              
            </div>
        <?php endforeach;?>
        </div>  

Thanks a lot for your help

解决方案

PHP

<?php

$maxItems = 15;

$Document = new DOMDocument();
$Document->load('http://testmustard.wordpress.com/feed/');

$NodeList = $Document->getElementsByTagName('item');

$i = 0;
foreach ($NodeList as $Node) {
    if ($i++ >= $maxItems) {
        break;
    }

    $media = $Node->getElementsByTagNameNS('http://search.yahoo.com/mrss/', 'content');
    if ($media->length > 0) {
        $imageUrl = $media->item(0)->getAttribute('url');
        echo "$imageUrl\n";
    } else {
        echo "No media:content\n";
    }
}

The key is getElementsByTagNameNS. It let's you use the media namespace so you can snag the content.

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