What best practices should be followed when handling dynamic data in PHP forms without storing them in a database first?

When handling dynamic data in PHP forms without storing them in a database first, it is important to sanitize and validate the input to prevent any security vulnerabilities. One approach is to use PHP sessions to temporarily store the data as the user navigates through the form. By using sessions, you can maintain the data across multiple pages without the need to store it in a database. 

<?php
session_start();

// Validate and sanitize the form data
$data = $_POST['data'];
// Perform validation and sanitization here

// Store the validated data in a session variable
$_SESSION['dynamic_data'] = $data;

// Redirect to the next page
header('Location: next_page.php');
exit;
?>

Keywords

PHP dynamic data forms security validation

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