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

That will unset the cookie in your code, but since the $_COOKIE variable is refreshed on each request, it'll just come back on the next page request.

To actually get rid of the cookie, set the expiration date in the past:

// set the expiration date to one hour ago
setcookie("hello", "", time()-3600);