有没有对接申请SSL证书的php源码

<?php
require 'vendor/autoload.php';

use AcmePhp\Ssl\Generator\KeyPairGenerator;
use AcmePhp\Ssl\Parser\KeyParser;
use AcmePhp\Ssl\Signer\DataSigner;
use AcmePhp\Core\Http\Base64SafeEncoder;
use AcmePhp\Core\Http\SecureHttpClient;
use AcmePhp\Core\AcmeClient;
use AcmePhp\Core\Challenge\Http\HttpDataExtractor;
use AcmePhp\Core\Challenge\Http\HttpChallengeHandler;
use AcmePhp\Core\Challenge\Http\HttpChallengeVerifier;

// 生成密钥对
$keyPairGenerator = new KeyPairGenerator();
$keyPair = $keyPairGenerator->generateKeyPair();

// 创建安全的HTTP客户端
$secureHttpClient = new SecureHttpClient(
    $keyPair,
    new KeyParser(),
    new DataSigner(),
    new Base64SafeEncoder()
);

// 创建ACME客户端
$acmeClient = new AcmeClient($secureHttpClient);

// 注册账户
$acmeClient->registerAccount('your-email@example.com');

// 请求证书
$domains = ['your-domain.com', 'www.your-domain.com'];
$order = $acmeClient->requestOrder($domains);

// 处理HTTP挑战
$httpChallengeHandler = new HttpChallengeHandler();
$httpDataExtractor = new HttpDataExtractor();

foreach ($order->getAuthorizationsChallenges() as $authorizationChallenges) {
    $domain = $authorizationChallenges->getLocation()->getDomain();

    $challenge = $authorizationChallenges->getHttpChallenge();

    $httpChallengeHandler->handle($challenge, $httpDataExtractor->getCheckPath($challenge));

    $acmeClient->challenge($challenge);

    $httpChallengeHandler->cleanUp($domain, $httpDataExtractor->getFilePath($challenge));
}

// 生成域名密钥对
$domainKeyPair = $keyPairGenerator->generateKeyPair();

// 请求证书签名
$certificate = $acmeClient->requestCertificate($order, $domainKeyPair);

// 保存证书和私钥
file_put_contents('/etc/letsencrypt/live/your-domain.com/cert.pem', $certificate->getPEM());
file_put_contents('/etc/letsencrypt/live/your-domain.com/private.pem', $domainKeyPair->getPrivateKey()->getPEM());
>