php 用guzzule 6 發送HTTP請求

guzzle不知不覺升級到六，升級以後和原來3.*的時候用法不一樣了，看文檔也迷糊，找了半天才從文檔找到用法：
POST

$response = $client->request('POST', 'http://httpbin.org/post', [
    'form_params' => [
        'field_name' => 'abc',
        'other_field' => '123',
        'nested_field' => [
            'nested' => 'hello'
        ]
    ]
]);
$result = $response->getBody();

GET

$client = new Client();
$res = $client->request('GET', $url . "?param1=1&param2=9");
$result = $res->getBody();

講道理，還是挺方便的。