How can normalization principles be applied to improve the database structure in PHP applications?

Issue: By applying normalization principles, we can improve the database structure in PHP applications by reducing redundancy and improving data integrity. This can be achieved by breaking down large tables into smaller, more manageable tables and establishing relationships between them using foreign keys. PHP Code Snippet:

// Example of applying normalization principles to improve the database structure

// Create a new table for storing user information
CREATE TABLE users (
    id INT PRIMARY KEY,
    username VARCHAR(50) UNIQUE,
    email VARCHAR(100) UNIQUE
);

// Create a new table for storing user posts
CREATE TABLE posts (
    id INT PRIMARY KEY,
    user_id INT,
    title VARCHAR(100),
    content TEXT,
    FOREIGN KEY (user_id) REFERENCES users(id)
);