How to use sessionstimeout()

Hi,

Iam new to PHP,please help me that how to code to logout by giving sessiontimeout() ,and where should i use this function..

This is quite a large subject to cover in one post. Plus, there are a number of techniques to control sessions, such as using a database etc.

Here is a well known tutorial on how to customize sessions in PHP.

http://www.phpfreaks.com/tutorials/77/0.php

Good Luck.
Ess