functions to be called just before session_destroy?

[ssk]

i want to call certain functions/ php files on session_destroy
say to delete entries in database etc..
if a user logs in some info is stored to d/b on his login.. user remains inactive for some time..the session is timed out..now the info in the d/b may be misleading..so i want it deleted on session_destroy..HOW DO I DO IT?!!!
pls..help..!

[scoutt]

at the end of your function that deletes the data from the DB just have teh session_destroy function.

[ssk]

hi scoutt!
thanx for the rply..
but i want things to happen *on* session_destroy.. not before it!
say if a session times out.. the that that went into d/b is not of any interest to me.. so if user is inactive till time out.. his data is to be destroyed..so this can't be done before session_destroy!

[ssk]

when i say Data ..i mean the data enterd by user as well as *session data*!

[ssk]

regarding the things to happen *on* session_destroy()
i've got hold of session_set_save_handler() which takes a list of ptrs.. ie names of user defined functions open read write close desrtoy and garbage collect.. to send session data into d/b.. by setting session_handler to user in php.ini
but i think this doesn't allow registered variables...
why so? now that i can delete data *on* session_destroy
i want to kknow how to do so on time out????