What I have understood it's possible to remove a cookie with PHP if you know it's name, but there is one catch.
I have a subdomain in witch I have changed how Google Analytics tracks. This means I now have two _ga cookies with different domains. They are: _ga cookie with domain set to "site.com" _ga cookie with domain set to "subdomain.site.com"
Is it possible to delete the _ga cookie that uses "subdomain.site.com" when users visits the page? Or at least set expiry date to something in the past?
Kind regards Johan