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I have some RSS that looks like this:

<item>
<guid isPermaLink="false">2284767032</guid>
<title>title goes here...</title>
<description> Description </description>
<author>author name</author>
<dcterms:valid>start=2012-09-28T17:06:00Z;scheme=W3C-DTF</dcterms:valid>
<media:category scheme="" label="">cat1</media:category>
<media:category scheme="" label="">cat2</media:category>
<media:category scheme="" label="">cat3</media:category>

<media:copyright>Big Company</media:copyright>
<media:keywords>some;keywords;</media:keywords>
<media:group>
<media:content bitrate="643.386" medium="video" duration="72.144" expression="full" fileSize="5802051" framerate="29.97" type="video/x-flv" height="360" url="..." width="640"/>
<media:content bitrate="1242.571" medium="video" duration="72.144" expression="full" fileSize="11205501" framerate="29.97" type="video/x-flv" height="480" url="..." width="854"/>
</media:group>
<link>a234dfasf4f</link>
<plmedia:defaultThumbnailUrl>
  http://url.jpg
</plmedia:defaultThumbnailUrl>
</item>

I'm using the following code to parse it:

  $feed = simplexml_load_file('http://feedurl.com');
  echo "<pre>";
  print_r($feed);
  echo "</pre>";

The problem is that I'm getting all the tags like guid, title, and description, but none of the media:category or media:group or something:anything show up - they are just stripped out.

How can I parse this feed without losing them?

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1 Answer

up vote 0 down vote accepted

You need to find where the namespaces are defined, and find the string that the namespaces map to. So for example if the media namespace maps to http://example.com/something:

echo (string)$feed->children('http://example.com/something')->copyright;

Outputs:

Big Company

The result of print_r() with SimpleXML does not always give you the full structure, but the elements are there.

To get the nested elements, try something like:

foreach($feed->children('http://example.com/something')->group->children('http://example.com/something')->content as $content)
{
    echo (string)$content->attributes()->bitrate;
}
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Would that be in the header of the RSS document? –  Wes Jan 17 '13 at 17:18
 
@Wes yes it usually is, for example: <rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0"> this is the definition of the itunes namespace, defined as http://www.itunes.com/dtds/podcast-1.0.dtd. –  MrCode Jan 17 '13 at 17:22
 
Okay, is there anyway to combine them all into on big object/array? –  Wes Jan 17 '13 at 17:39
 
This is working but for the nested ones I get this: wes.io/MFAk - how do I get that information? –  Wes Jan 17 '13 at 17:53
 
You could manually add the data to a big array, other than that I don't think so. To get the nested ones I think you'd have to call children() again. See my edit. –  MrCode Jan 17 '13 at 17:56
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