In PHP authentication systems, how do I process events?

In PHP authentication systems, you can process events like user registration, login, and logout to enhance security and user experience. Below is a sample code snippet demonstrating a login event processing.

<?php session_start(); if ($_SERVER["REQUEST_METHOD"] == "POST") { $username = $_POST['username']; $password = $_POST['password']; // Example of login processing // Assuming $db is your database connection $stmt = $db->prepare("SELECT * FROM users WHERE username = ?"); $stmt->execute([$username]); $user = $stmt->fetch(); if ($user && password_verify($password, $user['password'])) { // Successful login $_SESSION['user_id'] = $user['id']; header("Location: dashboard.php"); } else { // Failed login echo "Invalid username or password."; } } ?>

PHP authentication user login system event processing in PHP secure login PHP sessions

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