Newbie having problem with sessions

[coup]

Hi just getting started with PHP

I've already put some basic code together on my hosting space using PHP and MySQL together and that seems to be working ok.

I now what to create a login area for administrators but when I upload the script it spits back the following error message

<?php
session_start();

// If session variable doesen't exist, register it
if (!isset($_SESSION['test'])) {
    $_SESSION['test'] = 'Hello World!';
    echo '$_SESSION[\'test\'] is registered.<br />' . 'Please refresh page';
} else {
    // Itsregistered so display it
    echo '$_SESSION[\'test\'] = ' . $_SESSION['test'];
}
?>

you might recognise this little bit of code from a certain PHP book!!??

but when I test it I get this error

Warning: Cannot send session cache limiter - headers already sent (output started at /home/danielgold/public_html/php/sessions/3.php:2) in /home/danielgold/public_html/php/sessions/3.php on line 3 $_SESSION['test'] is registered.
Please refresh page

my php setting can be view at info.php

any ideas??

[Mike Borozdin]

Add ob_start() to the first line of your code and ob_end_flush() to the last one.

[drzoid]

Is

<?php

the first line in /home/danielgold/public_html/php/sessions/3.php? If not, it explains the error. In this case simply remove the previous lines respectively reorder your code as you cant do a session_start() when you have already sent output.