Reading itunes XML file with PHP DOM method - php

Question

I'm having some trouble in getting information from my itunes XML feed which you can peek at here: http://c3carlingford.org.au/podcast/C3CiTunesFeed.xml
I need to get the information from each of the inner <item> tags. An example of one of these is as follows:
<item>
<title>What to do when a viper bites you</title>
<itunes:subtitle/>
<itunes:summary/>
<!-- 4000 Characters Max ******** -->
<itunes:author>Ps. Phil Buechler</itunes:author>
<itunes:image href="http://www.c3carlingford.org.au/podcast/itunes_cover_art.jpg"/>
<enclosure url="http://www.ccccarlingford.org.au/podcast/C3C-20120722PM.mp3" length="14158931" type="audio/mpeg"/>
<guid isPermaLink="false">61bc701c-b374-40ea-bc36-6c1cdaae8042</guid>
<pubDate>Sun, 22 Jul 2012 19:30:00 +1100</pubDate>
<itunes:duration>40:01</itunes:duration>
<itunes:keywords>
Worship, Reach, Build, Holy Spirit, Worship, C3 Carlingford
</itunes:keywords>
</item>
Now i have had some success!
I have been able to get the title out of it all:
<?php
$dom = new DOMDocument();
$dom->preserveWhiteSpace = false;
$dom->load('http://c3carlingford.org.au/podcast/C3CiTunesFeed.xml');
$items = $dom->getElementsByTagName('item');
foreach($items as $item){
$title = $item->getElementsByTagName('title')->item(0)->nodeValue;
echo $title . '<br />';
};
?>
But I can't seem to get anything else out... I'm new to all this!
So What I need to get out includes:
The <itunes:author> value.
The url attribute value from the <enclosure> tag
Would someone help me getting these two values out?

Answer 1

You can use DOMXPath to do this and make your life a lot easier:
$doc = new DOMDocument();
$doc->preserveWhiteSpace = false;
$doc->loadXML( $xml); // $xml = file_get_contents( "http://www.c3carlingford.org.au/podcast/C3CiTunesFeed.xml")
// Initialize XPath
$xpath = new DOMXpath( $doc);
// Register the itunes namespace
$xpath->registerNamespace( 'itunes', 'http://www.itunes.com/dtds/podcast-1.0.dtd');
$items = $doc->getElementsByTagName('item');
foreach( $items as $item) {
$title = $xpath->query( 'title', $item)->item(0)->nodeValue;
$author = $xpath->query( 'itunes:author', $item)->item(0)->nodeValue;
$enclosure = $xpath->query( 'enclosure', $item)->item(0);
$url = $enclosure->attributes->getNamedItem('url')->value;
echo "$title - $author - $url\n";
}
You can see from the demo that this will output:
What to do when a viper bites you - Ps. Phil Buechler - http://www.ccccarlingford.org.au/podcast/C3C-20120722PM.mp3

Answer 2

Yes, You can do it with simplexml.
Here is the sample code:
<?php
$x = simplexml_load_file("http://c3carlingford.org.au/podcast/C3CiTunesFeed.xml");
foreach ($x->channel->item as $item) {
$otherNode = $item->children('http://www.itunes.com/dtds/podcast-1.0.dtd');
echo $item->title .'---'.$otherNode->author;
echo "\n";
}
?>
OutPut:
What to do when a viper bites you---Ps. Phil Buechler
Living Water, Let the River Flow!---Ps. Phil Buechler
The Call of God to Forgive One Another AM & PM---Ps. Richard Botta
The Call of God to Evangelise AM & PM---Rob Waugh
The Call of God to Love One Another AM & PM---Rob Waugh
Hope this help!

Answer 3

you can use simpleXML children
$item->children('itunes', TRUE);
So you have an array with all the tag itunes:duration, itunes:subtitle ....
<?php
$x = simplexml_load_file("http://c3carlingford.org.au/podcast/C3CiTunesFeed.xml");
foreach ($x->channel->item as $item) {
$otherNode = $item->children('itunes', TRUE);
echo $otherNode->duration;
echo "\n";
echo $otherNode->author;
echo "\n";
echo $otherNode->subtitle;
echo "\n";
}
?>