The " PHPSESSID " cookie will soon be rejected because its " sameSite " attribute is set to " none " or an invalid value, and without " secure " attribute. To learn more about the "sameSite" attribute, visit https://developer.mozilla.org/docs/Web/HTTP/Headers/Set-Cookie/SameSite.

<?php
 ini_set("session.cookie_secure", 1);
 session_start();

my PHP code .... 

?>