Guzzle 身份验证返回 400 错误

Guzzle authentication returning 400 error

我正在尝试在 api 沙箱中进行身份验证,但错误 400 返回给我,我已经通过扩展获得它,但在带有 guzzle 的代码中它不起作用,我需要传递 Header 参数按原样加密授权。

 $client = new \GuzzleHttp\Client(['headers' => ['Authorization' => 'Basic $token']]);
                  $response = $client->post('', [
                        'grant_type' => 'password',
                        'scope' => 'forintegration',
                        'username' => '',
                        'password' => '',
                  ]);
                
                  $body = $response->getBody();
                  print_r(json_decode((string) $body));

合作对象:

$client = new \GuzzleHttp\Client();
              $url = "";
              $response = $client->request('POST', $url, [ 
                'headers' => [
                     'Accept' => 'application/x-www-form-urlencoded', 
                     'Authorization' => 'Basic $token'
                ],
                'form_params' => [
                     'grant_type' => 'password', 
                     'scope' => 'forintegration', 
                     'username' => '',
                     'password' => ''
                ] 
            ]);
            
              $body = $response->getBody();
              print_r(json_decode((string) $body));