Question Regarding Session ID

[Douglas Pollock]

I'm new to session id variables. I'm trying to write records containing the
session id to a log file but the session id keeps disappearing. I'm using
session_registe r() because the site has register_global s = On (Hosted web
site Php Version 4.3.3).

If I work on my local Windows XP computer and I start up a browser window
the first printf statement
printf ("This is the SID = $szTmp01<br>"); results in:

This is the SID =

Which is blank. The second print statement gives.
This is the session_id = PHPSESSID=9ebb9 5e5a3a68662c5ff 32c2db358222

which seems to work Ok.

When I execute the script on the hosted web site the result is:
This is the SID =
This is the session_id =

Can anyone explain what I'm doing wrong and why SID does not seem to have or
retain a value?

Thanks,
Doug

--------------------------------------------------

<?php
session_start() ;
error_reporting (E_ALL);
$szTmp01 = '';

$szTmp01 = SID;
printf ("This is the SID = $szTmp01<br>");

if(!session_is_ registered("ses sion_id"))
{
session_registe r("session_id") ;
}

$self_url = $_SERVER['PHP_SELF'];
if(IsSet($HTTP_ SESSION_VARS["session_id "]) &&
$HTTP_SESSION_V ARS["session_id "])
{
$session_id = $HTTP_SESSION_V ARS["session_id "];
$href = "$self_url?$szT mp01";
}
else
{
$session_id = SID;
session_registe r("session_id") ;
$href = $self_url;
}
printf ("This is the session_id = $session_id<br> ");
$MyVar = LogSession();
?>

<?php

function LogSession()
{
global $session_id;
global $self_url;
global $HTTP_SESSION_V ARS;
global $href;

if(!session_is_ registered('ses sion_id'))
{
$session_id = SID;
session_registe r('session_id') ;
}

$dtime = date('r');

$session_id = $HTTP_SESSION_V ARS["session_id "] ;

$rec_log = "Date: $dtime | SID: $session_id \n";
$fp = fopen("SLog/logs.txt", "a");
fputs($fp, $rec_log);
fclose($fp);

return;
}
?>

[Michael Fesser]

Re: Question Regarding Session ID

.oO(Douglas Pollock)
[color=blue]
>I'm new to session id variables. I'm trying to write records containing the
>session id to a log file but the session id keeps disappearing. I'm using
>session_regist er() because the site has register_global s = On (Hosted web
>site Php Version 4.3.3).[/color]

session_registe r() is deprecated, use the $_SESSION array instead. This
way the script will also work on servers with register_global s = Off.
[color=blue]
>Can anyone explain what I'm doing wrong and why SID does not seem to have or
>retain a value?[/color]

SID is only set if the client rejects the session cookie.

Micha

[Alvaro G. Vicario]

Re: Question Regarding Session ID

*** Michael Fesser escribió/wrote (Thu, 03 Mar 2005 19:34:37 +0100):[color=blue]
> SID is only set if the client rejects the session cookie.[/color]

The OP is probably looking for session_id():

string session_id ( [string id] )
session_id() returns the session id for the current session.

http://www.php.net/session_id

--
-+ Álvaro G. Vicario - Burgos, Spain
+- http://www.demogracia.com (la web de humor barnizada para la intemperie)
++ Manda tus dudas al grupo, no a mi buzón
-+ Send your questions to the group, not to my mailbox
--

[NSpam]

Re: Question Regarding Session ID

Douglas Pollock wrote:[color=blue]
> I'm new to session id variables. I'm trying to write records containing the
> session id to a log file but the session id keeps disappearing. I'm using
> session_registe r() because the site has register_global s = On (Hosted web
> site Php Version 4.3.3).
>
> If I work on my local Windows XP computer and I start up a browser window
> the first printf statement
> printf ("This is the SID = $szTmp01<br>"); results in:
>
> This is the SID =
>
> Which is blank. The second print statement gives.
> This is the session_id = PHPSESSID=9ebb9 5e5a3a68662c5ff 32c2db358222
>
> which seems to work Ok.
>
> When I execute the script on the hosted web site the result is:
> This is the SID =
> This is the session_id =
>
> Can anyone explain what I'm doing wrong and why SID does not seem to have or
> retain a value?
>
> Thanks,
> Doug
>
> --------------------------------------------------
>
> <?php
> session_start() ;
> error_reporting (E_ALL);
> $szTmp01 = '';
>
> $szTmp01 = SID;
> printf ("This is the SID = $szTmp01<br>");
>
> if(!session_is_ registered("ses sion_id"))
> {
> session_registe r("session_id") ;
> }
>
> $self_url = $_SERVER['PHP_SELF'];
> if(IsSet($HTTP_ SESSION_VARS["session_id "]) &&
> $HTTP_SESSION_V ARS["session_id "])
> {
> $session_id = $HTTP_SESSION_V ARS["session_id "];
> $href = "$self_url?$szT mp01";
> }
> else
> {
> $session_id = SID;
> session_registe r("session_id") ;
> $href = $self_url;
> }
> printf ("This is the session_id = $session_id<br> ");
> $MyVar = LogSession();
> ?>
>
> <?php
>
> function LogSession()
> {
> global $session_id;
> global $self_url;
> global $HTTP_SESSION_V ARS;
> global $href;
>
> if(!session_is_ registered('ses sion_id'))
> {
> $session_id = SID;
> session_registe r('session_id') ;
> }
>
> $dtime = date('r');
>
> $session_id = $HTTP_SESSION_V ARS["session_id "] ;
>
> $rec_log = "Date: $dtime | SID: $session_id \n";
> $fp = fopen("SLog/logs.txt", "a");
> fputs($fp, $rec_log);
> fclose($fp);
>
> return;
> }
> ?>
>
>
>
>[/color]
you don't need all this stuff, all you need to do is have an object that
instantiates a session at the top of the code. In fact you don't even
need to do that. the only essential thing in the above code is
session_registe r which should be unconditional 'cos it will use an
existing session or create one if a session don't exist.

As to the rest of it, well be a control freak if you must, but why
capture this information ?