multiple domains using one cookie

[Anon]

I want multiple domains to be able to read from one cookie, or set one cookie each for the different domains.

Here is the case:
When the user logs in to my server, I want to set a cookie that has the value $name="tobias". He specifies which domains that can read this cookie, something like $domains="domain1.com;domain2.com;domain6.com".
Then these sites can read the $name and print it.

The other way might be to set one cookie with the value $name="tobias" for domain1.com, one for domain2.com and one for domain6.com.
But the cookie has to come from domain1.com, otherwise it will only work for mydomain.com, right?
In other words, I can´t set, edit or read a cookie for an other site?

How would I go about doing this?

Regards,
// Tobias Talltorp

[toma42]

In other words, I can´t set, edit or read a cookie for an other site?

Yes, that's right and that's how it's susposed to be.

You could use web bugs, but that's probably not the solution you're looking for.

[reagent]

it may be what you need:
http://www.phpbuilder.com/columns/chriskings20001128.php3

p.