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**piz** · Feb 11, 2004, 10:38 AM

Hi,

You don't seem to use session_start at the beginning of your script... so session_register works like session_start. And session_start has to be put at the very beginning of your whole script. It modifies the header - as the error message told you - and you can't modify headers if they are already sent to the browser.

So it's recommandable to use session_start at the beginning of your script, then you can use session_register later without problems.

http://php.net/session_register
If session_start() was not called before this function is called, an implicit call to session_start() with no parameters will be made.

http://php.net/session_start
Note: If you are using cookie-based sessions, you must call session_start() before anything is outputted to the browser.

Further, you have to register your variables with their name, and not with their content. So, use this Line to register $username:

PHP Code:


session_register("username");

Saludo
piz

**Nightfire** · Feb 11, 2004, 11:17 AM

I guess I should also point out that session_register is no longer in use. You'll need to use

PHP Code:


session_start();

$_SESSION['username'] = $username;

**piz** · Feb 11, 2004, 11:20 AM

Originally posted by Nightfire
[B]I guess I should also point out that session_register is no longer in use. You'll need to use

Oh... I know that it's recommended to use the other way. But what do you mean by "not longer in use"? They'll remove the function in PHP5?

**Nightfire** · Feb 11, 2004, 11:29 AM

It just makes it more compatible. session_register (register_globals) have been turned off by default since 4.2.0, which means that session_register won't work, but the superglobals, such as $_SESSION will work with register_globals turned on or off

**DsgnrsTLZAdmin** · Feb 11, 2004, 11:41 AM

i used:

PHP Code:


<?php

session_start();

$_SESSION['sessionusername'] = $username;

?>

and I get..

..

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /var/www/html/forum/php/newthreadprocessor.php:7) in /var/www/html/forum/php/newthreadprocessor.php on line 8

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /var/www/html/forum/php/newthreadprocessor.php:7) in /var/www/html/forum/php/newthreadprocessor.php on line 8

which is the same thing basically so that didnt help at all....and this is at the top of the script.

**DsgnrsTLZAdmin** · Feb 11, 2004, 11:51 AM

hey yall im sorry....when you said beginning.....you ment beginning....before <html>. very first thing in the page is to start the session. anyway it works now thanks.

**DsgnrsTLZAdmin** · Feb 11, 2004, 11:53 AM

is it possible to hold two session variables at the same time? ( password and username) thanks

**piz** · Feb 11, 2004, 12:04 PM

@DsgnrsTLZAdmin: Yes, you can.

It just makes it more compatible. session_register (register_globals) have been turned off by default since 4.2.0, which means that session_register won't work, but the superglobals, such as $_SESSION will work with register_globals turned on or off

Thx. Yes, that's what I know, too.

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