The Client implements the Syncthing provided REST API calls: https://docs.syncthing.net/dev/rest.html
composer require terzinnorbert/syncthing-php
<?php
require 'vendor/autoload.php';
use SyncthingRest\Client;
$client = Client('http://localhost:8384','abcdabcd');
var_dump($client->getSystemConfig());
Converts the syncthing provided time to Carbon time
Client::convertTime('2018-05-06T10:21:00.533401659Z');