[PHP-DB] Cookies

[webmaster]

How can I request a persistant cookie from the clients computer (to make a autologin)
this doesnt work :echo $HTTP_COOKIE_VARS["nameCookie"]

code to set cookie: setcookie("newsLogin",$value,time()+ 3348000); 

if i ask from the same page I get the values I need but not from a different page...

thx