如何从RSS提要中获取“ Media：thumbnail”（使用PHP）

Question

我想要此RSS Feed中的Media：thumbnail！ https://myanimelist.net/rss/news.xml。

有人可以帮助我解析可以解析“ Media：thumbnail”的PHP解析器吗？

<?php
        //Feed URLs
        $feeds = array(
        "https://myanimelist.net/rss/news.xml",
        );
        $entries = simplexml_load_file('http://myanimelist.net/rss/news.xml');

        //Read each feed's items
        $entries = array();
        foreach($feeds as $feed) {
            $xml = simplexml_load_file($feed);
            $entries = array_merge($entries, $xml->xpath("//item"));

        }
        //Sort feed entries by pubDate
        usort($entries, function ($feed1, $feed2) {
            return strtotime($feed2->pubDate) - strtotime($feed1->pubDate);
        });

        // Photo
        $photo = $entries->xpath ('channel/item/media:thumbnail');
        foreach ($photo as $Photos) {
        }

        ?>

        <ul>
        <?php

$NUMITEMS   = 5;

$count = 0;
        //Print all the entries
        foreach($entries as $entry){
        ?>

        <hr>
<div id="block">
<li><a href="<?= $entry->link ?>"><?= $entry->title ?></a></li>
<p><?= $entry->atom ?></p>
<p class="text"><?= $entry->description ?></p></li>
<p class="date"><?= strftime('Op %d/%m/%Y en om %H:%M', strtotime($entry->pubDate)) ?></p>
<img class="img" src="<?= $Photos; ?>">laden...</img>
</div>

       <?php

        if(++$count >= $NUMITEMS) break;
        }

标题，描述，链接和日期很好用，但是Media：thumbnail不能用！