<?php // First, include the Requests Autoloader. require_once dirname(__DIR__) . '/src/Autoload.php'; // Next, make sure Requests can load internal classes. WpOrg\Requests\Autoload::register(); // Now let's make a request! $request = WpOrg\Requests\Requests::post('http://httpbin.org/post', [], ['mydata' => 'something']); // Check what we received var_dump($request);