What are the limitations of using hidden fields in PHP forms to pass data?

Using hidden fields in PHP forms to pass data can pose security risks as the data can be easily tampered with by users. To mitigate this risk, it is recommended to use sessions or cookies to store and pass sensitive data securely. 

<?php
session_start();

// Set data in session variable
$_SESSION['username'] = 'example_user';

// Retrieve data from session variable
$username = $_SESSION['username'];

// Destroy session
session_destroy();
?>

Keywords

hidden fields data passing limitations security vulnerabilities form submission

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