GuzzleHttp 400 500 时获取内容的方法

http_errors

Summary
Set to false to disable throwing exceptions on an HTTP protocol errors (i.e., 4xx and 5xx responses). Exceptions are thrown by default when HTTP protocol errors are encountered.
Types
bool
Default
true
Constant
GuzzleHttp\RequestOptions::HTTP_ERRORS
$client->request('GET', '/status/500');
// Throws a GuzzleHttp\Exception\ServerException

$res = $client->request('GET', '/status/500', ['http_errors' => false]);
echo $res->getStatusCode();
// 500