попробуй так
use GuzzleHttp\Client;
use GuzzleHttp\Cookie\FileCookieJar;
// file to store cookie data
$cookieFile = 'cookie_jar.txt';
$cookieJar = new FileCookieJar($cookieFile, TRUE);
$client = new Client([
'base_uri' => '
http://example.com',
// specify the cookie jar
'cookies' => $cookieJar
]);
// guzzle/cookie.php, a page that returns cookies.
$response = $client->request('GET', 'simple-page.php');