Problem with session vars inside a function

massimo_79

Hi all,
when I try to set a value on a $_SESSION or $HTTP_SERVER_VARS variable from outside a function, it work fine, where I try to do the same thing from inside a function the variable is empty outside the function or in another page.
I've tried to switch register_global on/off but nothing change.
I've tried to register variable with session_register() before assign it a value but nothing happens.
I've tried to insert / remove "global" before assign it but nothing.
My php version is 4.3.2 on IIS 5 (windows 2000).
Is there anybody that can help me?

(sorry for my english, I'm italian)

Weedpacket

You should be able to work with $_SESSION[] inside a function without any difficulty; it's always available.

$HTTP_SERVER_VARS[] - you need to declare it global to use it in a function. But you've got $SERVER[], which contains all the same information, and like $SESSION[] is always available. So you'd be better off using $_SERVER[] and not $HTTP_SERVER_VARS[].

Ah, but you said $_SESSION[] didn't work inside a function. Could you show us an example?

massimo_79

Hi WeedPacked,
thank you for your help, this is an example:

case 1) this work fine

page 1:
<?php
$SESSION["var"] = "value";
?>
page 2:
<?php
echo $SESSION["var"];
?>

case 2) this don't work
page 1:
<?php
function myfunction()
{
$SESSION["var"] = "value";
}
?>
page 2:
<?php
echo $SESSION["var"]; //return empty string
?>

This don't work and I don't know if is a bug in php or a my mistake.

thank you for your help! bye bye

TTT

you are trying to set value in function, that shold be done like:

function myfunction()
{
$someVar = 1+2;
return someVar;
}
?>

$_SESSION["var"] = myfunction() ;

massimo_79

Thank you for your answer, but I must insert value in var $_SESSION only in the function and it doesn't work, i cannot exit the function.
Do you know if is a problem about my web server, a bug in php or for a my error?

TTT

why don't you split your function?

Weedpacket

These two work ways of setting the session variable work fine for me:

<?php
session_start();
$_SESSION['var'] = 'value';
?>

and

<?php
session_start();
function foo()
{   $_SESSION['var'] = 'value';
}
foo();
?>

Are your examples complete? I ask because I don't see session_start() in either - but then the first case wouldn't work, so I guess you're just leaving that out of the post.