setcookie() domain

sparek2

Is there a way to set a cookie on domainA.com and read that cookie from domainB.com?

For example, say I have two domain names, book.com and magazine.com.

On book.com I want to set a cookie that can be read by magazine.com

setcookie("thecookie","the value",time()+600,"/","magazine.com");

Then on magazine.com, I would read this cookie's value with:

echo $_COOKIE['thecookie'];

Is such a thing possible or is the domain parameter of setcookie() tied solely to the domain name that is calling the script?

Thanks

NogDog

I do not believe a single cookie can reference two different domains. You might (but I've never had reason to try it) be able to define two cookies with the same name/value but with different domains (the 5th arg to [man]setcookie()[/man]).

sneakyimp

I think he's trying to define a cookie for some other domain from the current domain. In other words, he wants to set a cookie at me.com which is to be read at you.com.

NogDog

sneakyimp;10886812 wrote:
I think he's trying to define a cookie for some other domain from the current domain. In other words, he wants to set a cookie at me.com which is to be read at you.com.

Yep...and that's what I was trying to address (though I have no idea if my suggestion will work or not, plus it might be rejected anyway based on the user's security/privacy settings disallowing 3rd-party cookies).

sneakyimp

Yeah I'm not sure it's going to work either. I tried setting a cookie from my dev server (192.168.1.141 on local network) for a domain I run (jaith.net) and when i visited jaith.net to print_r the cookie, there was nothing there. I'm pretty sure I have all that third party stuff turned off.

sparek2

I don't think this will work. After reading through the cookie specification, I think the domain attribute can only be set to the same domain name as the host or a higher level of that domain.

I was confused by this, I thought that you could set the domain attribute to any domain that you wanted to be able to read the cookie. I thought my example wasn't working because perhaps I had a setting turned off that needed to be enabled.

But after reading through some of the documents on this, I don't believe this is the case.