PHP Sessions Between Subdomains

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PHP Sessions across sub domains

I can't seem to get this to work. I want to be able to log in from my main domain, and remain logged in when they go to a subdomain of the site. Whenever I go from my main domain to a subdomain, I'm immediately logged out.

I've tried changing session.cookie_domain in php.ini with no avail, as well as trying

ini_set('session.cookie_domain','.site.com' );

and this in .htaccess as well

php_value session.cookie_domain .site.com

How can I have sessions go between subdomains?

Related threads : http://stackoverflow.com/questions/644920/allow-php-sessions-to-carry-over-to-subdomains and http://stackoverflow.com/questions/1064243/php-sessions-across-sub-domains — KV Prajapati, Oct 04 '11 at 02:56

score 0 · Answer 1 · edited Oct 04 '11 at 07:09

stick with ini_set(); or, even better, with session_set_cookie_params()

2. debug your code

verify your settings, if they actually were set, by outputting them
verify actual HTTP headers sent by your server to the client.
verify actual HTTP headers sent by your browser to the server.

Sessions are not a black box; it's just a combination of a few very simple mechanisms such as HTTP cookies, so check every part of it.

PHP Sessions Between Subdomains

1 Answers1

2. debug your code