PHP outputing nested childnodes - php

Question

I am trying to output a xml file to an array thats then outputted to screen. The xml file loads I know it loads because as I can output entry > Id but I can not access its child nodes. I need the data located in.
content > s:organisationSummay
content > s:organisationSummay > s:address
content > s:organisationSummay > s:geographicCoordinates
how would I access the the data located in s:organisationSummay ,s:address, s:geographicCoordinates so I can getElementsByTagName for each items in that child node.
$doc2 = new DOMDocument();
$url = 'http://v1.syndication.nhschoices.nhs.uk/organisations/'.$_POST['ServiceType'].'/postcode/'.$_POST['PostCode'].'.xml?apikey=??&range=50';
echo $url;
$doc2->load($url);
$arrFeeds = array();
foreach ($doc2->getElementsByTagName('entry') as $node)
{
echo $node->getElementsByTagName($content->'s:name');
$itemRSS = array (
'PracticeName' => $organisationSummary->getElementsByTagName('s:name')->item(0)->nodeValue
);
array_push($arrFeeds, $itemRSS);
}
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns:s="http://syndication.nhschoices.nhs.uk/services" xmlns="http://www.w3.org/2005/Atom">
<title type="text">NHS Choices - GP Practices Near Postcode - ls1- Within 50km</title>
<id>http://v1.syndication.nhschoices.nhs.uk/organisations/gppractices/postcode/bd164jt?range=50</id>
<rights type="text">© Crown Copyright 2009</rights>
<updated>2012-07-06T10:24:46+01:00</updated>
<category term="Search"/>
<logo>http://www.nhs.uk/nhscwebservices/documents/logo1.jpg</logo>
<author>
<name>NHS Choices</name>
<uri>http://www.nhs.uk</uri>
<email>webservices#nhschoices.nhs.uk</email>
</author>
<link rel="self" type="application/xml" title="NHS Choices - GP Practices Near Postcode - ;ls1 - Within 50km" href="http://v1.syndication.nhschoices.nhs.uk/organisations/gppractices/postcode/ls1?apikey=??&range=50"/>
<link rel="first" type="application/xml" title="first" length="1000" href="http://v1.syndication.nhschoices.nhs.uk/organisations/gppractices/postcode/ls1?apikey=??&range=50&page=1"/>
<link rel="next" type="application/xml" title="next" length="1000" href="http://v1.syndication.nhschoices.nhs.uk/organisations/gppractices/postcode/Ls1?apikey=??&range=50&page=2"/>
<link rel="last" type="application/xml" title="last" length="1000" href="http://v1.syndication.nhschoices.nhs.uk/organisations/gppractices/postcode/LS1?apikey=??&range=50&page=10"/>
<link rel="alternate" title="NHS Choices - Find and choose services - GP Practices" href="http://www.nhs.uk/ServiceDirectories/pages/ServiceSearch.aspx?ServiceType=GP"/>
<s:SearchCoords>439300,411100</s:SearchCoords>
<entry>
<id>http://v1.syndication.nhschoices.nhs.uk/organisations/gppractices/1</id>
<title type="text">Medical Practice</title>
<updated>2012-07-06T09:24:46Z</updated>
<link rel="self" title="Medical Practice" href="http://v1.syndication.nhschoices.nhs.uk/organisations/gppractices/1?apikey=??"/>
<link rel="alternate" title="Medical Practice" href="http://www.nhs.uk/ServiceDirectories/Pages/GP.aspx?pid=1"/>
<content type="application/xml">
<s:organisationSummary>
<s:name>Medical Practice</s:name>
<s:address>
<s:addressLine>Health Care Centre</s:addressLine>
<s:addressLine>2</s:addressLine>
<s:addressLine>Town</s:addressLine>
<s:addressLine>Yorkshire</s:addressLine>
<s:postcode>?</s:postcode>
</s:address>
<s:contact type="General">
<s:telephone>5558383</s:telephone>
</s:contact>
<s:geographicCoordinates>
<s:northing>438880</s:northing>
<s:easting>411444</s:easting>
<s:longitude>-1.82821202227791</s:longitude>
<s:latitude>53.996218047559</s:latitude>
</s:geographicCoordinates>
<s:Distance>0.5</s:Distance>
</s:organisationSummary>
</content>
</entry>
<entry>
<id>http://v1.syndication.nhschoices.nhs.uk/organisations/gppractices/2</id>
<title type="text">Surgery</title>
<updated>2012-07-06T09:24:46Z</updated>
<link rel="self" title="Surgery" href="http://v1.syndication.nhschoices.nhs.uk/organisations/gppractices/1?apikey=??"/>
<link rel="alternate" title="Surgery" href="http://www.nhs.uk/ServiceDirectories/Pages/GP.aspx?pid=2"/>
<content type="application/xml">
<s:organisationSummary>
<s:name>Surgery</s:name>
<s:address>
<s:addressLine>Healthcare Centre</s:addressLine>
<s:addressLine>Kings</s:addressLine>
<s:addressLine>Town</s:addressLine>
<s:postcode>?</s:postcode>
</s:address>
<s:contact type="General">
<s:telephone>555555</s:telephone>
<s:email>Email</s:email>
</s:contact>
<s:geographicCoordinates>
<s:northing>78421</s:northing>
<s:easting>484100</s:easting>
<s:longitude>-1.828987402220691</s:longitude>
<s:latitude>53.987218047559</s:latitude>
</s:geographicCoordinates>
<s:Distance>0.5</s:Distance>
</s:organisationSummary>
</content>
</entry>
</feed>

Answer 1

This is a namespaced document, so you need to use the proper namespace methods, e.g. DOMDocument::getElementsByTagNameNS.
In addition, there is so much wrong with your loop that I suspect you're either not including all the code or you really misunderstand how DOMDocument works.
$NS = array(
's' => "http://syndication.nhschoices.nhs.uk/services",
'atom' => "http://www.w3.org/2005/Atom",
);
$entries = array();
foreach ($doc2->getElementsByTagNameNS($NS['s'], 'organisationSummary') as $node)
{
$entries[] = array(
'name' => trim($node->getElementsByTagNameNS($NS['s'], 'name')->item(0)->textContent),
'address' => keyByElementName($node->getElementsByTagNameNS($NS['s'], 'address')->item(0)),
'geographicCoordinates' => keyByElementName($node->getElementsByTagNameNS($NS['s'], 'geographicCoordinates')->item(0)),
);
}
function keyByElementName(DOMNode $node)
{
$elem = array();
foreach ($node->childNodes as $child) {
if ($child->nodeType===XML_ELEMENT_NODE) {
$elem[$child->localName] = trim($child->textContent);
}
}
return $elem;
}
However, consider using DOMXPath or SimpleXML, as these will be easier than dom traversal.