如何通过GuzzleHttp组件下载远程文件并保存在本地？

$client = new Client([

    'headers' => [

        'User-Agent' => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.111 Safari/537.36',

        'referer' => 'https://cn.test.com/screener/',

        'origin' => 'https://cn.test.com'

    ],

    'proxy'=>[

        'http'  => 'http://127.0.0.1:55555',

        'https' => 'http://127.0.0.1:55555',

        'no'    =>  ['.cn']

    ],

    'verify'=>false

]);



//下载

$response = $client->get($remoteUrl,['save_to'=>$fileSaveDir]);

if($response && file_exists($fileSaveDir)){

    echo "下载成功".PHP_EOL;

}