php 手机验证注册

<?php
// 数据库连接
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 发送验证码
function sendVerificationCode($phone) {
    $code = rand(100000, 999999); // 生成6位随机验证码
    // 这里可以使用短信服务提供商的API发送短信
    // 例如：使用腾讯云短信服务
    // https://cloud.tencent.com/document/product/382/5976
    echo "验证码已发送到手机：" . $phone . "，验证码为：" . $code;
    return $code;
}

// 注册处理
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $phone = $_POST['phone'];
    $code = $_POST['code'];

    // 验证码有效期为5分钟
    $valid_until = time() + 300;

    // 检查验证码是否正确
    if ($code == $_SESSION['verification_code'] && time() < $valid_until) {
        // 验证通过，保存用户信息到数据库
        $sql = "INSERT INTO users (phone) VALUES ('$phone')";
        if ($conn->query($sql) === TRUE) {
            echo "注册成功";
        } else {
            echo "Error: " . $sql . "<br>" . $conn->error;
        }
    } else {
        echo "验证码错误或已过期";
    }
}

// 发送验证码页面
if ($_SERVER["REQUEST_METHOD"] == "GET") {
    $phone = $_GET['phone'];
    $_SESSION['verification_code'] = sendVerificationCode($phone);
}

$conn->close();
?>