carica/jsondom

dev-master 2014-02-18 09:17 UTC

This package is auto-updated.

Last update: 2024-03-29 02:55:44 UTC


README

License: The MIT License

Copyright: 2013-2014 Thomas Weinert thomas@weinert.info

Carica JsonDOM converts JSON into a XML DOM. The generated XML is wellformed and contains additional JSON specific data in a separate namespace.

Why not use JSON directly?

Because it is a lot of work. You need to check if elements exists, lists are empty, check conditions ... It is easier if you can use a query language, like Xpath.

Example

Use Xpath to fetch data from a JSON:

<?php
$reader = new Carica\JsonDOM\Reader($json);
$xpath = new DOMXpath($reader->asDom());
var_dump(
  $xpath->evaluate('string(/*/phoneNumbers/*[type="home"]/number)')
);
// string(12) "212 555-1234"

JSON (from Wikipedia)

{
  "firstName": "John",
  "lastName": "Smith",
  "age": 25,
  "address": {
    "streetAddress": "21 2nd Street",
    "city": "New York",
    "state": "NY",
    "postalCode": 10021
  },
  "phoneNumbers": [
    {
      "type": "home",
      "number": "212 555-1234"
    },
    {
      "type": "fax",
      "number": "646 555-4567"
    }
  ]
}

XML

<?xml version="1.0" encoding="UTF-8"?>
<json:json xmlns:json="urn:carica-json-dom.2013">
  <firstName>John</firstName>
  <lastName>Smith</lastName>
  <age json:type="number">25</age>
  <address>
    <streetAddress>21 2nd Street</streetAddress>
    <city>New York</city>
    <state>NY</state>
    <postalCode json:type="number">10021</postalCode>
  </address>
  <phoneNumbers json:type="array">
    <_>
      <type>home</type>
      <number>212 555-1234</number>
    </_>
    <_>
      <type>fax</type>
      <number>646 555-4567</number>
    </_>
  </phoneNumbers>
</json:json>

Create Json from XML

You can convert it back, or generate an JSON from any XML DOM. Node attributes will be ignored and duplicates will override the previous key.

<?php
echo 'XML -> JSON: ', "\n";
$writer = new Carica\JsonDOM\Writer($dom);
echo json_encode($writer, JSON_PRETTY_PRINT);

Installation

Carica JsonDOM is available on Packagist. Use Composer to add it as a dependency into your own projects.