What are the potential pitfalls of using a PHP chat without registration?

Potential pitfalls of using a PHP chat without registration include lack of user authentication, inability to track user activity or behavior, and potential for misuse or abuse by anonymous users. To address these issues, you can implement a simple registration system that requires users to create an account before participating in the chat. 

<?php

session_start();

if(isset($_POST['username'])) {
    $_SESSION['username'] = $_POST['username'];
    header('Location: chat.php');
    exit;
}

?>

<form method="post">
    <label for="username">Username:</label>
    <input type="text" name="username" id="username" required>
    <button type="submit">Join Chat</button>
</form>

Keywords

PHP chat registration security user authentication

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