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php代码实现方式

$groupId = "https://oapi.dingtalk.com/robot/send?access_token=cf224bd004fb135776f045d3"; //webhook地址
        $secret = ""; //加签
        $timestamp = time() * 1000; // 注意：时间戳需要转换为毫秒级

        $stringToSign = $timestamp . "\n" . $secret;
        $signature = hash_hmac('sha256', $stringToSign,$secret, true);
        $base64Signature = base64_encode($signature);
        $urlEncodedSignature = urlencode($base64Signature);

        $messageData = [
            'msgtype' => 'text',
            'text' => [
                'content' => "123asdfsadf",
            ],
        ];
        $groupId .= "&timestamp={$timestamp}&sign={$urlEncodedSignature}";


        posturl($groupId,$messageData)


public static function posturl($url, $data = [], $header = [])
    {
        $data = json_encode($data);
        $headerArray = array("Content-type:application/json;charset='utf-8'", "Accept:application/json");
        $headerArray = array_merge($headerArray, $header);

        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($curl, CURLOPT_POST, 1);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        curl_setopt($curl, CURLOPT_HTTPHEADER, $headerArray);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $output = curl_exec($curl);
        curl_close($curl);
        $result =  json_decode($output, true);
        print_r($result);die;
        if(isset($result['code']) && $result['code'] == 0){
            return $result;
        }else{
            $msg = isset($result['msg']) ? $result['msg'] : '调用报错'.$output;
            throw new \Exception($msg);
        }
    }