PHP COOKIE subdomain to domain not working -


i have used following code cookie not working domain.

setcookie('cookiename', 'value', time() + 3600,"/",'.domain.com');  setcookie('cookiename', 'value', time() + 3600,"/",'subdomain.domain.com');  setcookie('cookiename', 'value', time() + 3600,"/");

header("set-cookie: cookiename=cookievalue; expires=tue, 06-jan-2019 23:39:49 gmt; path=/; domain=subdomain.example.net");

all above 4 examples not working cookie subdomain domain. please help.


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