if ($_SERVER['REQUEST_METHOD'] == 'POST') { $username = $_POST['username']; $password = $_POST['password']; if (validate_user($username, $password)) { login_user($username); header("Location: home.php"); } else { $error = "Invalid username or password"; } }
if ($_SERVER['REQUEST_METHOD'] == 'POST') { $username = $_POST['username']; $password = $_POST['password']; $email = $_POST['email']; if (validate_registration($username, $password, $email)) { insert_user($username, $password, $email); header("Location: login.php"); } else { $error = "Invalid input"; } }Package library: This example could be implemented using the Phalcon MVC framework, which has a built-in ORM for database operations.