就不长篇大论了,直接贴示例代码吧
$client = new \GuzzleHttp\Client();
$jar = new \GuzzleHttp\Cookie\CookieJar();
$domain = 'www.baidu.com';
$cookies = [
'sessionid' => '123456',
];
$cookieJar = $jar->fromArray($cookies, $domain);
return $client->request('GET', 'www.baidu.com', ['cookies' => $cookieJar]);