(PHP Extension) JSON: Nested Objects

Here we have a JSON object that contains nested JSON objects. This example demonstrates how to access the contents of the nested objects.

{
  "name": "donut",
  "image":
    {
    "fname": "donut.jpg",
    "w": 200,
    "h": 200
    },
  "thumbnail":
    {
    "fname": "donutThumb.jpg",
    "w": 32,
    "h": 32
    }
}

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$json = new CkJsonObject();

// This is the above JSON with whitespace chars removed (SPACE, TAB, CR, and LF chars).
// The presence of whitespace chars for pretty-printing makes no difference to the Load
// method. 
$jsonStr = '{\'name\': \'donut\',\'image\':{\'fname\': \'donut.jpg\',\'w\': 200,\'h\': 200},\'thumbnail\':{\'fname\': \'donutThumb.jpg\',\'w\': 32,\'h\': 32}}';

$success = $json->Load($jsonStr);
if ($success != true) {
    print $json->lastErrorText() . "\n";
    exit;
}

// Get the "image" object.
// imageObj is a CkJsonObject
$imageObj = $json->ObjectOf('image');
if ($json->get_LastMethodSuccess() == false) {
    print 'image object not found.' . "\n";
    exit;
}

print 'image: fname=' . $imageObj->stringOf('fname') . ', width=' . $imageObj->IntOf('w') . ', height=' . $imageObj->IntOf('h') . "\n";

// Get the "thumbnail" object.
// thumbObj is a CkJsonObject
$thumbObj = $json->ObjectOf('thumbnail');
if ($json->get_LastMethodSuccess() == false) {
    print 'thumbnail object not found.' . "\n";
    exit;
}

print 'thumbnail: fname=' . $thumbObj->stringOf('fname') . ', width=' . $thumbObj->IntOf('w') . ', height='
     . $thumbObj->IntOf('h') . "\n";


?>