// Подключение к БД
function getDB() {
    static $pdo = null;
    if ($pdo === null) {
        try {
            $pdo = new PDO(
                "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=utf8mb4",
                DB_USER,
                DB_PASS,
                [
                    PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
                    PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
                    PDO::ATTR_EMULATE_PREPARES => false
                ]
            );
        } catch (PDOException $e) {
            die("Database connection failed: " . $e->getMessage());
        }
    }
    return $pdo;
}

// Подключение к Redis
function getRedis() {
    static $redis = null;
    if ($redis === null) {
        try {
            $redis = new Redis();
            $redis->connect(REDIS_HOST, REDIS_PORT);
        } catch (Exception $e) {
            die("Redis connection failed: " . $e->getMessage());
        }
    }
    return $redis;
}
?>