Get XML values using PHP - php

Question

I have a XML file. Here is a small version of that.
<?xml version="1.0" encoding="UTF-8"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="fr">
<title>Liste des ebooks</title>
<updated>2012-03-01T01:23:24Z</updated>
<author>
<name>Drown Del</name>
</author>
<opensearch:totalResults>2338</opensearch:totalResults>
<opensearch:itemsPerPage>100</opensearch:itemsPerPage>
<entry>
<category term="Romans" label="Romans"/>
<category term="Aventures" label="Aventures"/>
</entry>
</feed>
First I would like to know how do we call something like opensearch:totalResults in XML terms.
And I need your help with obtaining following values with PHP.
<opensearch:totalResults>2338</opensearch:totalResults> I need to get 2338 to a PHP variable.
Thank you.
Thank you all for your answers.
I could fix it with following way.
$xml = simplexml_load_string($xmltext);
$val = $xml->xpath('opensearch:totalResults');
echo $val[0];

Answer 1

parse all of this information into PHP using DOM. Ex.
$doc = new DOMDocument;
$doc->loadXML($xml); //$xml is your xml string
echo $doc->getElementsByTagName("totalResults")->item(0)->nodeValue;

Answer 2

For your first question, opensearch:totalResults is the qualified name of a start tag. It is called a qualified name (you might come across this as QName) because it contains the namespace (opensearch) for the tag.
For your second question, you can easily parse your XML into a DOMDocument and then query it for the value of the relevant tag. There are lots of examples on SO and of course on Google; a basic one from PHP.net is here.
Important note: Your current XML document does not contain an XML namespace declaration for the opensearch namespace, and will not parse as a result. You need to add such a declaration by making a modification:
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="fr"
xmlns:opensearch="http://a9.com/-/spec/opensearch/1.1/">
If you need more powerful querying you can also use XPath. A minimal example would look like:
$doc = new DOMDocument();
$doc->loadXML($xml);
$xpath = new DOMXPath($doc);
$nodes = $xpath->query('//opensearch:totalResults');
foreach ($nodes as $node) {
echo $node->nodeValue;
}

Answer 3

opensearch is a namespace, so you can try to access it like:
$yourXml->children('openSearch', true)->totalResults
Hope it helps

Answer 4

Check this out the exact result in PHP
<?php
$xml ='<?xml version="1.0" encoding="UTF-8"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="fr">
<title>Liste des ebooks</title>
<updated>2012-03-01T01:23:24Z</updated>
<author>
<name>Drown Del</name>
</author>
<opensearch:totalResults>2338</opensearch:totalResults>
<opensearch:itemsPerPage>100</opensearch:itemsPerPage>
<entry>
<category term="Romans" label="Romans"/>
<category term="Aventures" label="Aventures"/>
</entry>
</feed>';
$dom = new DOMDocument();
$dom->loadXML($xml);
$xmlD = simplexml_import_dom($dom);
echo $xmlD->totalResults;
?>

Answer 5

Read your xml file with simplexml_load_file as an object
Then get your variable like this:
$object->{'opensearch:totalResults'};