How to consume a json Rest API with PHP using Unirest

app.php

<?php
require __DIR__ . '/vendor/autoload.php';

$response = Unirest\Request::get('https://api.github.com/repos/twilio/twilio-php/contributors');

print_r($response->body);

composer.json

{
   "require": {
      "mashape/unirest-php": "3.*"
   }
}