RE: [PHP] register session

Make sure you have session_start() before any output is sent to the browser, also look for whitespace at the top of your file, sometimes a blank line or a space can cause this error. The reason you get this error is session_start() needs to add information to the headers but because they have already been sent it can't. You can either put session_start before any output or you can enable output buffering. If this doesn't work let me know. Jason -----Original Message----- From: Kris Vose [mailto:KVose@alidaconnection.com] Sent: Wednesday, April 03, 2002 10:42 AM To: php-general@lists.php.net Subject: [PHP] register session I am trying to register a session after verification of username and password. It looks like this: session_start(); If ($name = $aa) && ($username = $ab) { session_register("valid_user"); echo "<script>window.location=\'admin_.php'\</script>"; } else { echo "Your username/password is incorrect"; } On each page that I want secure I include a script that checks for the session_register(). It looks like this: session_start(); global $valid_user; if (session_is_registered("valid_user")) { echo "you are registered"; } else { echo "you are not registered"; } This code is not working and it sends a warning message like this: Warning: Cannot send session cache limiter - headers already sent (output started at /var/www/focus-capital/BetterBus/1/admin_.php:7) in /var/www/focus-capital/BetterBus/1/admin_.php on line 126 you are registered 1 - Send Mail I have not used sessions before and I am wondering if I am doing some wrong with the syntax?