PHP Encode / Decode data structures

xml2json.php

<?php

$dom = simplexml_load_string(
    '<root>
        <langage>PHP</langage>
        <version>7</version>
        <parent>
            <version>5</version>
        </parent>
    </root>'
);

$result[$dom->getName()] = $dom;
echo json_encode($result, JSON_PRETTY_PRINT);