What are the potential pitfalls of using JavaScript to retain form data compared to PHP methods?

One potential pitfall of using JavaScript to retain form data is that it relies on client-side scripting, making it vulnerable to manipulation by users. To address this issue, it is recommended to use PHP to handle form data processing and validation on the server-side, ensuring data integrity and security. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = $_POST['name'];
    $email = $_POST['email'];
    
    // Process and validate form data here
    
    // Redirect to a different page after processing form data
    header("Location: success.php");
    exit();
}
?>

Keywords

JavaScript form data PHP methods data retention potential pitfalls

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