if($username == "admin" && $password == "pass"){ $_SESSION['user'] = $username; setSuccessMsg("Logged in successfully."); header("Location: dashboard.php"); // Redirect to dashboard page }
if($_SERVER['REQUEST_METHOD'] == "POST"){ // Process form data setSuccessMsg("Form submitted successfully."); header("Location: thank-you.php"); // Redirect to thank-you page }In this example, we set a success message after the user submits a form successfully. We then redirect the user to a thank-you page where they can see the success message. This function is a part of the PHP core and does not belong to any specific package library.