Hallo
how can i increase session died time to more than 12 hours
More then 12 hours?
In that case, why arent you using a cookie?
is it possible to set cookie to be valid until page closed
No.
you can increase your session time in your php.ini file ..
session.gc_maxlifetime = "1440" is the default.
For 12 hours, change this to 43200
