Is there some way to convert json to xml in PHP?

Question

is there some way to convert json to xml in PHP? I know that xml to json is very much possible.

Answer 1

It depends on how exactly you want you XML to look like. I would try a combination of json_decode() and the PEAR::XML_Serializer (more info and examples on sitepoint.com).

require_once 'XML/Serializer.php';

$data = json_decode($json, true)

// An array of serializer options
$serializer_options = array (
  'addDecl' => TRUE,
  'encoding' => 'ISO-8859-1',
  'indent' => '  ',
  'rootName' => 'json',
  'mode' => 'simplexml'
); 

$Serializer = &new XML_Serializer($serializer_options);
$status = $Serializer->serialize($data);

if (PEAR::isError($status)) die($status->getMessage());

echo '<pre>';
echo htmlspecialchars($Serializer->getSerializedData());
echo '</pre>';

(Untested code - but you get the idea)

Answer 2

If you're willing to use the XML Serializer from PEAR, you can convert the JSON to a PHP object and then the PHP object to XML in two easy steps:

include("XML/Serializer.php");

function json_to_xml($json) {
    $serializer = new XML_Serializer();
    $obj = json_decode($json);
    if ($serializer->serialize($obj)) {
        return $serializer->getSerializedData();
    }
    else {
        return null;
    }
}

Answer 3

There's the Services_JSON extension from pear.php.net that does exactly what you need. You'll also need the SimpleXMLElement extension. Details and code sample here:

http://www.ibm.com/developerworks/xml/library/x-xml2jsonphp/

EDIT: Sorry, I misread the question: my answer is for converting XML to JSON.