How do you configure Apache to allow 'session_start();'

[Drebin]

Hi, I'm trying to follow a PHP tutorial on sessions but I don't think the apache server I have on my system supports it.

Here is the code I have:

<?php
session_start();

echo "testing sessions\n";

?>

I always get an error message telling me that headers have already been sent. I tried using the 'session_start();' code on a friends web server and it works.

Can someone please tell me which file I have to configure in Apache and what to change? Thanks.

[LordShryku]

Is that the whole script? There's nothing above it? Seach the forums for "headers already sent". This question gets answered many times a day.