使用composer安装sdk

   "alibabacloud/dysmsapi-20170525": "2.0.24"

封装发送短信类
发送到的短信参数写在env文件里面的

#发送短信配置
[AliyunSms]
AccessKeyId = ""
AccessKeySecret =""
signName=""
templateCode=""

<?php


namespace app\api\service;







use AlibabaCloud\Credentials\Credential\Config;
use AlibabaCloud\SDK\Dysmsapi\V20170525\Dysmsapi;
use AlibabaCloud\SDK\Dysmsapi\V20170525\Models\SendSmsRequest;
use AlibabaCloud\Tea\Exception\TeaError;
use AlibabaCloud\Tea\Utils\Utils;
use AlibabaCloud\Tea\Utils\Utils\RuntimeOptions;
use Exception;
use think\facade\Env;

class AliSms
{


    /**
     * 发送短信验证码
     *
     * @param string $phoneNumber 手机号码
     * @param string $code 验证码
     * @return bool 发送成功返回true，否则返回false
     */
    public static function  sendSmsCode($phoneNumber, $code):array
    {
        // 阿里云控制台中获取的AccessKey信息
        $accessKeyId = Env::get("AliyunSms.AccessKeyId");
        $accessSecret = Env::get("AliyunSms.AccessKeySecret");

// 短信模板CODE，根据自己的模板填写
        $templateCode = Env::get("AliyunSms.templateCode");

// 短信签名，根据自己的签名填写
        $signName = Env::get("AliyunSms.signName");
        try {
            $config = new Config([
                // 必填，您的 AccessKey ID
                "accessKeyId" => $accessKeyId,
                // 必填，您的 AccessKey Secret
                "accessKeySecret" => $accessSecret
            ]);
            // 访问的域名
            $config->endpoint = "dysmsapi.aliyuncs.com";
            $client = new Dysmsapi($config);

            $sendSmsRequest = new SendSmsRequest([
                "phoneNumbers" => $phoneNumber,
                "signName" => $signName,
                "templateCode" => $templateCode,
                "templateParam" => json_encode(array('code' => $code))
            ]);
            $runtime = new RuntimeOptions([]);


            // 复制代码运行请自行打印 API 的返回值
            $result = $client->sendSmsWithOptions($sendSmsRequest, $runtime);


            if ($result->statusCode == 200) {
                return ["code" => 1, "msg" => "短信发送成功"];
            } else {
                // 短信发送失败
                return ["code" => -1, "msg" => "发送失败"];
            }
        } catch (Exception $error) {
            if (!($error instanceof TeaError)) {
                $error = new TeaError([], $error->getMessage(), $error->getCode(), $error);
            }
            // 如有需要，请打印 error

            return ["code" => -1, "msg" =>    Utils::assertAsString($error->message)];

        }


    }

}

调用方法

  $code = rand(1000, 9999);
  $res = AliSms::sendSmsCode($phone, $code);