PHP如何与钉钉实现接口通信

<?php
// 钉钉开放平台应用的凭证和秘钥
$appkey = 'your_appkey';
$appsecret = 'your_appsecret';

// 基础接口URL
$base_url = 'https://oapi.dingtalk.com';

// 获取access_token
$access_token_url = $base_url . '/gettoken?appkey=' . $appkey . '&appsecret=' . $appsecret;
$access_token_json = file_get_contents($access_token_url);
$access_token_arr = json_decode($access_token_json, true);
$access_token = $access_token_arr['access_token'];

// 发送消息
$message_url = $base_url . '/robot/send?access_token=' . $access_token;
$data = [
    'msgtype' => 'text',
    'text' => [
        'content' => 'Hello, DingTalk!'
    ]
];
$data_string = json_encode($data);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $message_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>