session variables

i used this function:
session_start();
and i had these warnings:
Warning: Cannot send session cache limiter - headers already sent (output started at c:\program files\apache group\apache\htdocs\test\index.php:8) in c:\program files\apache group\apache\htdocs\test\index.php on line 38

Warning: open(/tmp\sess_2f20ae55ca19e33486cb9c946e0b2c97, O_RDWR) failed: m (2) in c:\program files\apache group\apache\htdocs\test\index.php on line 38

Warning: open(/tmp\sess_2f20ae55ca19e33486cb9c946e0b2c97, O_RDWR) failed: m (2) in Unknown on line 0

Warning: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0

what is the problem? and what is the solution?

You cannot output anything at all to the browser before calling the session_start() function. So make sure you have don't have any extra lines or spaces that are being outputted to the browser before that line.

you need to edit your php.ini to set the session.save_path directive to a directory that exists , say 'c:/windows/temp' or whatever , just make sure it exists

Best advice: If your using php sessions on a page, the VERY FIRST TWO LINES should look like this:

<?
session_start();
// Rest of code

Best advice: If your using php sessions on a page, the VERY FIRST TWO LINES should look like this:

<?
session_start();
// Rest of code

No. Your very first line should be

<?php

the output errors are probably due to the warnings created from the session write error , fix the session.save_path first , the other errors may then (or may not) go away.

you need to edit your php.ini to set the session.save_path directive to a directory that exists , say 'c:/windows/temp' or whatever , just make sure it exists

Wow how did I miss those other warnings they had posted? lol That's what I get for trying to answer a question at 6:30 in the morning. :)