Convert XSD file to JSON file

xsd_to_json.php

<?php
function xsd_to_json($xsd_file, $formatted = 448) {
    $xml_file = preg_replace('/\.xsd$/', '.xml', $xsd_file);
    $json_file = preg_replace('/\.xsd$/', '.json', $xsd_file);
    $doc = new DOMDocument();
    $doc->preserveWhiteSpace = true;
    $doc->load($xsd_file);
    $doc->save($xml_file);
    $xml = file_get_contents($xml_file);
    $obj = str_replace($doc->lastChild->prefix.':', "", $xml);
    $json = json_encode(simplexml_load_string($obj), $formatted);
    return file_put_contents($json_file, $json);
}