Home/ Questions/Q 6586427
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-25T16:47:22+00:00

I wonder how this quote from the PHP manual should be interpreted: session.cookie_domain specifies

  • 0

I wonder how this quote from the PHP manual should be interpreted:

session.cookie_domain specifies the domain to set in the session
cookie. Default is none at all meaning the host name of the server
which generated the cookie according to cookies specification.

Does it mean that when calling session_start on URL http://www.somedomain.com/somepage.php the cookie will have the following form: 

Set-Cookie  PHPSESSID=e48gh5mqggccgmn8172f0j5a06; path=/; domain=.somedomain.com

Or

Set-Cookie  PHPSESSID=e48gh5mqggccgmn8172f0j5a06; path=/; domain=www.somedomain.com

I have seen on index pages the first cookie header and on other pages a header without a domain.

Can someone bring some insight on this?

Thanks

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    No, php will usualy set the cookie for the current domain ex: wwww.domain.com.
    To have everything consistent, you must either redirect all request to the same domain, or explicitly set the cookie for all subdomains.

    EDIT: actualy, this is true for Firefox. I think PHP will not actualy set the domain, so the browser is free to use whatever he wants. Internet Explorer i think will set it for any subdomain

    • 0