Remove a cookie

Question

When I want to remove a Cookie I try

unset($_COOKIE[\'hello\']);

I see in my cookie browser from firefox that the cookie still exists. How

Answer 1

When you enter 0 for time, you mean "now" (+0s from now is actually now) for the browser and it deletes the cookie.

setcookie("key", NULL, 0, "/");

I checked it in chrome browser that gives me:

Name: key
Content: Deleted
Created: Sunday, November 18, 2018 at 2:33:14 PM
Expires: Sunday, November 18, 2018 at 2:33:14 PM