Webex Api -如何使用php交换访问令牌的授权码？

<?php
$authorization_code = "授权码";
$client_id = "客户端ID";
$client_secret = "客户端密钥";
$redirect_uri = "重定向URL";

$token_url = "https://api.webex.com/v1/access_token";

$data = array(
    'grant_type' => 'authorization_code',
    'code' => $authorization_code,
    'client_id' => $client_id,
    'client_secret' => $client_secret,
    'redirect_uri' => $redirect_uri
);

$options = array(
    'http' => array(
        'header' => "Content-Type: application/x-www-form-urlencoded\r\n",
        'method' => 'POST',
        'content' => http_build_query($data)
    )
);

$context = stream_context_create($options);
$response = file_get_contents($token_url, false, $context);
$token_data = json_decode($response, true);

$access_token = $token_data['access_token'];
$refresh_token = $token_data['refresh_token'];

// 在后续的API调用中使用access_token进行身份验证
?>