In PHP, what are some recommended database structures and fields for managing user payments and subscription statuses?

When managing user payments and subscription statuses in PHP, it is recommended to have a database structure that includes tables for users, payments, and subscriptions. For the users table, you can include fields like user_id, username, email, password, and subscription_status. For the payments table, you can include fields like payment_id, user_id, amount, payment_date, and payment_status. For the subscriptions table, you can include fields like subscription_id, user_id, plan_id, start_date, end_date, and subscription_status.

// Create users table
CREATE TABLE users (
    user_id INT PRIMARY KEY AUTO_INCREMENT,
    username VARCHAR(50) NOT NULL,
    email VARCHAR(100) NOT NULL,
    password VARCHAR(255) NOT NULL,
    subscription_status ENUM('active', 'inactive') NOT NULL
);

// Create payments table
CREATE TABLE payments (
    payment_id INT PRIMARY KEY AUTO_INCREMENT,
    user_id INT,
    amount DECIMAL(10, 2) NOT NULL,
    payment_date DATE NOT NULL,
    payment_status ENUM('paid', 'pending') NOT NULL,
    FOREIGN KEY (user_id) REFERENCES users(user_id)
);

// Create subscriptions table
CREATE TABLE subscriptions (
    subscription_id INT PRIMARY KEY AUTO_INCREMENT,
    user_id INT,
    plan_id INT,
    start_date DATE NOT NULL,
    end_date DATE NOT NULL,
    subscription_status ENUM('active', 'inactive') NOT NULL,
    FOREIGN KEY (user_id) REFERENCES users(user_id),
    FOREIGN KEY (plan_id) REFERENCES plans(plan_id)
);