What are some best practices for designing MySQL tables for a forum application in PHP?

When designing MySQL tables for a forum application in PHP, it is important to consider the relationships between different entities such as users, posts, threads, and categories. Use normalization techniques to reduce redundancy and improve data integrity. Create appropriate indexes to optimize query performance and consider using foreign keys to enforce referential integrity. 

CREATE TABLE users (
    id INT PRIMARY KEY AUTO_INCREMENT,
    username VARCHAR(50) NOT NULL,
    email VARCHAR(100) NOT NULL,
    password VARCHAR(255) NOT NULL
);

CREATE TABLE categories (
    id INT PRIMARY KEY AUTO_INCREMENT,
    name VARCHAR(50) NOT NULL
);

CREATE TABLE threads (
    id INT PRIMARY KEY AUTO_INCREMENT,
    title VARCHAR(100) NOT NULL,
    category_id INT,
    user_id INT,
    FOREIGN KEY (category_id) REFERENCES categories(id),
    FOREIGN KEY (user_id) REFERENCES users(id)
);

CREATE TABLE posts (
    id INT PRIMARY KEY AUTO_INCREMENT,
    content TEXT NOT NULL,
    thread_id INT,
    user_id INT,
    FOREIGN KEY (thread_id) REFERENCES threads(id),
    FOREIGN KEY (user_id) REFERENCES users(id)
);

Keywords

MySQL table design forum application PHP database normalization

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