It’s a little bit tricky to parse and use XML data when tags have different namespaces. We would have to use the namespace string when accessing the objects like below with $dc_namespaces:

XML with two different namespaces

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<!-- xmldata.xml -->
<rootnode xmlns="http://mydomain.com/2010">
    <node>
        <title>This is the first Node</title>
        <meta>
            <dc:language>en</dc:language>
        </meta>
    </node>
    <node>
        <title>This is the second Node</title>
        <meta>
            <dc:language>en</dc:language>
        </meta>
    </node>
</rootnode>

PHP code to access the parsed object:

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<?php
$dc_namespace = 'http://purl.org/dc/elements/1.1/';

$data = simplexml_load_file('xmldata.xml');
foreach($data as $node)
{
    $title = $node->title;
    $lang  = $node->meta->children($dc_namespace)->language;
}