PHP开发的二手回收网站提供手机短信验证功能

function generateCode($length) {
  $characters = '0123456789';
  $code = '';
  for ($i = 0; $i < $length; $i++) {
    $code .= $characters[rand(0, strlen($characters) - 1)];
  }
  return $code;
}

// 生成一个6位数验证码
$code = generateCode(6);

require_once 'aliyun-php-sdk-core/Config.php';
use AliyunCoreConfig as AliyunConfig;
use AliyunApiSmsRequestV20170525SingleSendSmsRequest as SingleSendSmsRequest;

AliyunConfig::load();

// 配置阿里云短信平台的AccessKeyId和AccessKeySecret
$accessKeyId = 'your-access-key-id';
$accessKeySecret = 'your-access-key-secret';

// 创建API客户端
$client = new DefaultAcsClient(AlibabaCloud::region('cn-hangzhou')->credential($accessKeyId, $accessKeySecret));

// 创建短信请求对象
$request = new SingleSendSmsRequest();
$request->setSignName('your-sign-name'); // 设置短信签名
$request->setTemplateCode('your-template-code'); // 设置短信模板ID
$request->setRecNum('your-phone-number'); // 设置接收短信的手机号码
$request->setParamString('{"code":"' . $code . '"}'); // 设置短信模板变量

// 发送短信
$response = $client->getAcsResponse($request);

function verifyCode($inputCode, $generatedCode) {
  return $inputCode == $generatedCode;
}

// 用户输入的验证码
$inputCode = $_POST['code'];

// 验证验证码是否正确
if (verifyCode($inputCode, $code)) {
  echo '验证码正确';
} else {
  echo '验证码错误';
}