PHP Cookies for multiple Domains

Question

I want to create a cookie from one domain once the user is registered in PHP. and make this cookie accessible to 4 other domains not subdomain. I know that cookies are not d

Answer 1

As you have already said, a cookie can only be set for a domain from that domain (including its subdomains). And if your domains do not share a common superdomain, you need set each cookie for each domain separately.

You can do this with a script that on each domain that sets the cookie for you. But make sure to authenticate requests to these scripts so that only you can set the cookies.