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@ 2015-11-05T12:19:50Z

<?php

function array_to_xml($data, &$xml_data) {
    foreach ($data as $key => $value) {
        if (is_array($value)) {
            if (is_numeric($key)){
                $key = 'item'.$key; //dealing with <0/>..<n/> issues
            }
            $subnode = $xml_data->addChild($key);
            array_to_xml($value, $subnode);
        } else {
            $xml_data->addChild("$key",htmlspecialchars("$value"));
        }
     }
}

$requestResult = <<<EOT
{
    "name": "Benjamin Clementine",
    "mbid_id": "578e5d1c-be21-4158-b147-30aad67f207d",
    "albums": {
        "68e65535-f133-408d-93dd-205e9555eaa5": {
            "albumcover": [
                {
                    "id": "172070",
                    "url": "http://assets.fanart.tv/fanart/music/578e5d1c-be21-4158-b147-30aad67f207d/albumcover/at-least-for-now-55b74dfa59411.jpg",
                    "likes": "0"
                }
            ]
        }
    }
}
EOT;

$decodedResult = json_decode($requestResult, true);

$xmlELement = new SimpleXMLElement('<root/>');
array_to_xml($decodedResult, $xmlElement);

print_r($xmlElement->xpath('//albumcover/url'));

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Call to a member function addChild() on null in /in/44k13:12 Stack trace: #0 /in/44k13(38): array_to_xml(Array, NULL) #1 {main} thrown in /in/44k13 on line 12
Process exited with code 255.

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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