How can PHP developers ensure data normalization and adhere to database management system normal forms for efficient data retrieval?

To ensure data normalization and adhere to database management system normal forms for efficient data retrieval, PHP developers can create well-structured database tables with proper relationships, avoid redundant data storage, and use normalization techniques like breaking down data into smaller, related tables.

CREATE TABLE users (
    id INT PRIMARY KEY,
    username VARCHAR(50) UNIQUE,
    email VARCHAR(100) UNIQUE
);

CREATE TABLE posts (
    id INT PRIMARY KEY,
    title VARCHAR(100),
    content TEXT,
    user_id INT,
    FOREIGN KEY (user_id) REFERENCES users(id)
);