What are the limitations of using JavaScript to access all cookies on a user's PC?

When using JavaScript to access cookies on a user's PC, there are limitations due to browser security restrictions. JavaScript can only access cookies that are set on the same domain as the script is running on. To overcome this limitation, you can use server-side scripting languages like PHP to access and manipulate cookies on the server side. 

<?php
// Set a cookie using PHP
setcookie('cookie_name', 'cookie_value', time() + 3600, '/', 'example.com');

// Retrieve the cookie value using PHP
$cookie_value = $_COOKIE['cookie_name'];

// Delete a cookie using PHP
setcookie('cookie_name', '', time() - 3600, '/', 'example.com');
?>

Keywords

JavaScript cookies limitations security user's PC

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