Question

I added php_value session.cookie_domain .example.com to my .htaccess in order to be able to read PHP cookie from all subdomains, it seems to work however I cannot read the cookie when I am at: ‘example.com’ (no subdomains).

This is driving me crazy, I’m sure it’s a common issue since most people want their users to be logged in both the domain and all subdomains once they are authenticated.

What can I do to be able to write/read php cookie from any domain/subdomain?

Answer 1

There is no dependable way of doing this with session variables. You can either change your root domain to www.example.com or use cookies.

The docs for PHP’s setcookie say Cookies available to a lower domain, such as ‘example.com’ will be available to higher subdomains, such as ‘www.example.com’.