PHP read a cookie that is on another domain

Question

I have two domains. One domain contains the login script. It creates a cookie when logged in. Another domain have a URL shortener.

So, on the 2nd domain that have th

Answer 1

Just while setting cookie from the login page set the cookie to entire domain like this

setcookie("c","value",time()*3600*24,"/");

in this way you can set cookie to your entire domain.