How to destroy session?

[sachindesarda]

Hello friends,
I am using session for validating user and when user logout i am using session_destroy() to destroy the session but when user directly closes the window i do not know wheather the session is get destroyed or not.
I want to know that wheather is there any method to destroy such session or i should leave that as it is.And if I left that as it is wheather it will affect the performance of my program.
Thanking you ,
Sachin.

[OhLordy]

A session gets destroyed automatically when a user ends their session (closes the browser) so yes, it does get destroyed when they close the browser.
HTH
Rob