如何获取getElementsByTagNameNS内容？

Question

I am trying to read and parse an RSS feed. The header of the RSS feed is the following:

<rss version="2.0" xmlns:content="http://www.mywebsite.com" xmlns:media="http://search.yahoo.com/mrss/" >

I successfully retrieved both <title> and <link> from items but I can't seem to find a way to retrieve <content:encoded> childs. That's what I tryed so far:

<?php

//error_reporting(E_ALL);
//ini_set("display_errors", 1);

....

$x=$xmlDoc->getElementsByTagName('item');

foreach($x as $item) {
    $link = $item->getElementsByTagName('link')->item(0)->nodeValue;
    $title = $item->getElementsByTagName('title')->item(0)->nodeValue;
    $content = $item->getElementsByTagNameNS('http://www.mywebsite.com', 'encoded')->item(0);
    echo ("<p><a href='" . $link. "'>" . $title . "</a></p><p>" . $content . "</p>");
}

?>

As you can imagine $content is empty even if I try to get the nodeValue attribute, what am I missing here?

Answer 1

I ended up using SimpleXmlElement:

$x = new SimpleXmlElement($s);

foreach($x->channel->item as $entry) {

    $content = $entry->children("content", true);
    echo "<p>".$content->encoded."</p>";
}

Works like a charm.