What are the advantages and disadvantages of using pre-installed forum software versus setting up a custom forum on personal web space?

When deciding between using pre-installed forum software or setting up a custom forum on personal web space, the advantages of pre-installed software include ease of use, quick setup, and a large community for support. However, the disadvantages may include limited customization options and potential security vulnerabilities. On the other hand, setting up a custom forum allows for complete control over the design and functionality, but it requires more technical knowledge and time to develop.

// Example PHP code snippet for setting up a custom forum on personal web space

// Step 1: Create a database to store forum data
CREATE DATABASE forum_db;

// Step 2: Set up database connection in PHP
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "forum_db";

$conn = new mysqli($servername, $username, $password, $dbname);

// Step 3: Create tables for forum data (e.g. users, posts, threads)
CREATE TABLE users (
    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(30) NOT NULL,
    email VARCHAR(50) NOT NULL,
    password VARCHAR(255) NOT NULL
);

CREATE TABLE posts (
    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    user_id INT(6) UNSIGNED,
    thread_id INT(6) UNSIGNED,
    content TEXT,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE threads (
    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    user_id INT(6) UNSIGNED,
    title VARCHAR(100) NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

// Step 4: Implement forum functionality using PHP and SQL queries
// (e.g. user registration, login, posting threads and replies)