In PHP, what are the recommended methods for clearing form fields after successful submission to prevent resubmission via the back button?

When a form is submitted successfully, it is common practice to redirect the user to a different page to prevent resubmission if the back button is pressed. To clear form fields after successful submission, you can use JavaScript to reset the form fields or PHP to unset the form data variables. 

<?php
// Check if the form is submitted
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process the form data

    // Redirect to a different page to prevent resubmission
    header("Location: success.php");
    exit;
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>Clear Form Fields After Submission</title>
</head>
<body>
    <form method="post" action="">
        <input type="text" name="name" value="<?php echo isset($_POST['name']) ? $_POST['name'] : ''; ?>" placeholder="Name">
        <input type="email" name="email" value="<?php echo isset($_POST['email']) ? $_POST['email'] : ''; ?>" placeholder="Email">
        <button type="submit">Submit</button>
    </form>
</body>
</html>

Keywords

PHP form fields clear submission back button

Related Questions