<?php
$client = new http\Client();
$request = new http\Client\Request();
$body = new http\Message\Body();
$body->append(new http\QueryString(array('foo' => 'bar')));
$request->setRequestUrl('http://mockbin.com/har');
$request->setRequestMethod('POST');
$request->setBody($body);
$request->setQuery(new http\QueryString(array('foo' => array('bar', 'baz'), 'baz' => 'abc', 'key' => 'value')));
$request->setHeaders(array('content-type' => 'application/x-www-form-urlencoded', 'accept' => 'application/json'));
$client->setCookies(array('bar' => 'baz', 'foo' => 'bar'));
$client->enqueue($request)->send();
$response = $client->getResponse();
echo $response->getBody();
