如何使用PHP从Microsoft Graph API获取访问令牌并连接用户而无需重定向

{
  "require": {
    "guzzlehttp/guzzle": "^7.0"
  }
}

<?php

use GuzzleHttp\Client;

// 应用程序凭证
$appClientId = '<Your App Client Id>';
$appClientSecret = '<Your App Client Secret>';

// 获取访问令牌
$accessTokenUrl = 'https://login.microsoftonline.com/common/oauth2/v2.0/token';
$accessTokenParams = [
    'form_params' => [
        'client_id' => $appClientId,
        'client_secret' => $appClientSecret,
        'scope' => 'https://graph.microsoft.com/.default',
        'grant_type' => 'client_credentials'
    ]
];

$client = new Client();
$response = $client->post($accessTokenUrl, $accessTokenParams);
$accessToken = json_decode($response->getBody(), true)['access_token'];

// 连接用户
$userUrl = 'https://graph.microsoft.com/v1.0/me';
$userParams = [
    'headers' => [
        'Authorization' => 'Bearer ' . $accessToken
    ]
];

$response = $client->get($userUrl, $userParams);
$userData = json_decode($response->getBody(), true);

// 输出用户信息
echo '用户ID: ' . $userData['id'] . PHP_EOL;
echo '用户名称: ' . $userData['displayName'] . PHP_EOL;