签到php系统源码

// 示例代码：防止重复签到
session_start();
$user_id = $_SESSION['user_id'];
$today = date('Y-m-d');

// 检查今天是否已经签到
$signed_in = check_sign_in($user_id, $today);

if ($signed_in) {
    echo "今天已经签到过了";
} else {
    // 执行签到逻辑
    sign_in($user_id, $today);
    echo "签到成功";
}

function check_sign_in($user_id, $date) {
    // 查询数据库，检查用户今天是否已经签到
    // 返回true或false
}

function sign_in($user_id, $date) {
    // 插入签到记录到数据库
}

// 示例代码：处理数据库连接和插入操作
try {
    $conn = new PDO("mysql:host=localhost;dbname=yourdb", "username", "password");
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $stmt = $conn->prepare("INSERT INTO sign_in_records (user_id, date) VALUES (:user_id, :date)");
    $stmt->bindParam(':user_id', $user_id);
    $stmt->bindParam(':date', $date);
    $stmt->execute();
} catch (PDOException $e) {
    echo "数据库操作失败: " . $e->getMessage();
}

// 示例代码：处理签到奖励发放
try {
    $conn = new PDO("mysql:host=localhost;dbname=yourdb", "username", "password");
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    // 更新用户积分
    $stmt = $conn->prepare("UPDATE users SET points = points + :points WHERE id = :user_id");
    $stmt->bindParam(':points', $points);
    $stmt->bindParam(':user_id', $user_id);
    $stmt->execute();
} catch (PDOException $e) {
    echo "奖励发放失败: " . $e->getMessage();
}