public static function convert($json, $return = 'document')
{
self::$dom = new DOMDocument('1.0', 'utf-8');
self::$dom->formatOutput = TRUE;
// remove callback functions from JSONP
if (preg_match('/(\\{|\\[).*(\\}|\\])/s', $json, $matches)) {
$json = $matches[0];
} else {
throw new Exception('JSON not formatted correctly');
}
$data = json_decode($json);
$data_element = self::_process($data, self::$dom->createElement('data'));
self::$dom->appendChild($data_element);
switch ($return) {
case 'fragment':
return self::$dom->saveXML($data_element);
case 'object':
return self::$dom;
default:
return self::$dom->saveXML();
}
}
