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@ 2014-10-01T07:31:08Z

<?php
/**
 * How to get attribute of node with namespace using SimpleXML?
 *
 * @link http://stackoverflow.com/q/6576773/367456
 */
$buffer = '<feed xmlns="http://www.w3.org/2005/Atom" xmlns:yt="http://gdata.youtube.com/schemas/2007">
    <entry>
        <yt:duration seconds="1870" yt:seconds="0 in yt namespace" />
    </entry>
</feed>';

$xml = new SimpleXMLElement($buffer);

if (!defined('LIBXML_DOTTED_VERSION')) {
    echo "PHP/LIBXML unsupported/too old.";
    return;
}

echo "ibxml version: ", LIBXML_DOTTED_VERSION, "\n";

$youtube = $xml;

echo 'via attributes(): ', $youtube->entry->children('yt')->duration->attributes()->seconds, "\n";
echo 'via array-access: ', $youtube->entry->children('yt')->duration['seconds'], "\n";
echo 'via property    : ', $youtube->entry->children('yt')->duration->seconds, "\n";

Output for git.master, git.master_jit, rfc.property-hooks: ibxml version: 2.9.4 via attributes(): Warning: Attempt to read property "seconds" on null in /in/AWmO1 on line 24 via array-access: via property :

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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