/**
* takes a file name of an xml document and returns an json representation
*
* @param string $fileName
*/
function convert($fileName)
{
$d = new DOMDocument(1, "UTF-8");
$d->load($fileName);
$ret[$d->documentElement->nodeName] = dom_to_array($d->documentElement);
return json_encode($ret);
}
/**
* Transform DOM object to an array
*/
function dom_to_array($node, $parent_name = NULL)
{
$name = $node->nodeName;
$metadata = array();
// copy attributes
foreach ($node->attributes as $attr) {
$metadata['@' . $attr->name] = $attr->value;
}
// process children
foreach ($node->childNodes as $child) {
// process children elements
if ($child->nodeType == XML_ELEMENT_NODE) {
if ($node->childNodes->length == 1) {
$metadata[$child->nodeName] = dom_to_array($child, $name);
} else {
$metadata[$child->nodeName][] = dom_to_array($child, $name);
}
} elseif ($child->nodeType == XML_TEXT_NODE) {
$value = trim($child->nodeValue);
if (!empty($value)) {
$metadata['#value'] = str_replace("\n", ' ', $value);
}
}
}
if ($parent_name !== NULL) {
if (count($metadata) == 1 && isset($metadata['#value'])) {
$metadata = $metadata['#value'];
}
}
return $metadata;
}