Problem related to session

i am new user of php , i am trying out to use session to pass variables from one php page to other page
i am getting an error

Warning: Cannot send session cache limiter - headers already sent (output started at c:\apache\htdocs\companydesc.php:11) in c:\apache\htdocs\companydesc.php on line 13

along with the output i am getting this error , plz help me how to get rid of such errors

thank u in advance

start_session(); (or session_start(); i always forget) needs to be placed at the very very start of the page before anything else.

it has to be on the first line. No white space, no html, nothing sent back to the browser before the session is initiated. The error you're getting "headers already sent" is very common when starting with sessions.

your code should start like this:
<?php
seassion_start();

on every page.

guess i do get confused but i never spelt session with an 'a' in it, hehe.