php - $_SESSION across muliple virtual hosts -

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i have learned if share server host (which do, have virtualhost), hosts share same $_session same across hosts.

does meant other hosts can access of variables store in $_session?

check value of following:

echo ini_get('session.save_handler'); echo ini_get('session.save_path');

if save_handler files , save_path common directory /var/lib/php5 you're sharing session storage other users on server. you're still protected nature of session hash id, if have sensitive information might want make change. either change save_handler sqlite , provide own local database file, or change save_path directory that's owned , has minimal permissions. can change save_path in .htaccess file:

php_value session.save_path = '/path/to/my/session/directory'

or in php source:

ini_set('session.save_path', '/path/to/my/session/directory');

edit: realistically though, if have information sensitive enough warrant change, should using vps , not shared server.


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