How can the use of the "httponly" parameter in setcookie function impact cookie functionality in PHP?

When the "httponly" parameter is set to true in the setcookie function in PHP, it restricts the cookie from being accessed through client-side scripts such as JavaScript. This improves the security of the cookie by preventing cross-site scripting attacks that could potentially steal sensitive information stored in the cookie.

setcookie('cookie_name', 'cookie_value', time() + 3600, '/', '', true, true);