What are some common requirements for setting up a PHP forum on a website?

Setting up a PHP forum on a website typically requires a server with PHP support, a database system like MySQL, and a web server such as Apache. You will also need to create a database to store forum data, set up user authentication and permissions, and design the forum layout and functionality.

// Example code snippet for setting up a PHP forum on a website
// Connect to MySQL database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "forum";

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

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";