1. Go to this page and download the library: Download beeflow/jsonmanager library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
beeflow / jsonmanager example snippets
$jsonData = '{"id": 11111, "field": "field_name", "value": "new value"}';
$json = new JsonManager($jsonData);
$json->add('addNewRootField', 'new value');
$given = $json->get();