setcookie to an empty value not working

Question

i have this code im trying to do for a type of cache system so it remembers the city the user has selected. if the user has selected a city it stores it in sessions and cook

Answer 1

You can set empty value to the cookie by using null pointer as the value

like this:

    setrawcookie('testEmptyCookie', "\x00", time() + 3600, '/');

(tried on php 5.6, 7.2)