What features should a PHP forum ideally have to ensure user engagement and functionality?

To ensure user engagement and functionality in a PHP forum, it should ideally have features such as user registration and login, the ability to create and reply to threads, notifications for new replies, user profiles with avatars and signatures, moderation tools for administrators, and search functionality. 

// Example PHP code snippet for implementing user registration and login functionality in a forum

// User registration form
<form action="register.php" method="post">
    Username: <input type="text" name="username"><br>
    Password: <input type="password" name="password"><br>
    <input type="submit" value="Register">
</form>

// User registration logic in register.php
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = $_POST["username"];
    $password = $_POST["password"];

    // Validate input and insert user data into database
}
?>

// User login form
<form action="login.php" method="post">
    Username: <input type="text" name="username"><br>
    Password: <input type="password" name="password"><br>
    <input type="submit" value="Login">
</form>

// User login logic in login.php
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = $_POST["username"];
    $password = $_POST["password"];

    // Validate user credentials and set session variables
}
?>

Keywords

authentication user roles notifications search functionality moderation tools

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