sessions--can't figure it out!

mbannonb

At the entry point to the website, I have:

session_start();
session_register('msg');

from there, the user enters some data and gets sent to another page that has on it:

session_start();
[some processing stuff]
$msg="<br>Your information is safely stored.<br><br>You may now:<li><a href=page1.php>Continue shopping</a><li>View or change your addresses below";
header ("location: editaddresses.php");

The 'editaddresses.php' gets called, and that has

session_start(); at the top and includes a 'header.php' (which gets included on all pages) and has:

session_start();
if (session_is_registered('msg'))
{
print "$msg";
$msg="";
}

However, $msg does not get printed, even when the processing stuff above clearly indicates that it should be set.

I've also tried if ($msg!=""), but no luck there either.

Anyone have any clues as to what I'm doing wrong or need to be doing?

You'd be a life saver!

jscnet

Put session_register('msg') on page.

session_start();
session_register('msg');

if (session_is_registered('msg'))
{
print "$msg";
$msg="";
}

See my posting under "General", called "SESSION HELL... Please Help." and then "SESSION HELL... Solved." -- for more insight into a potential problem and the fix.

Jason

mbannonb

Thanks.

I've stored your thread on my site.

http://www.inflash.com/sections.php?op=viewarticle&artid=12

However, in my case, I'm not setting session variables from a form, it's just setting $msg to equal a message for feedback to the user. So after they enter data and the and everything checks out okay, $msg="okay!". 'msg' having been already registered as a session variable.

It tried using session_register('msg') on the feedback page as well (in addition to the session_register('msg') that was set at the beginning of the script, but no luck.

Another odd thing is, it works when the script calls itself, but not when it calls another script.

$msg="okay.";
header ("location: self.php");

prints out 'okay' where it's suppossed to. However,

$msg="okay"
header ("location: otherscript.php");

does not print message. session_start(); is the first thing on both pages, too.

mbannonb

Also, in the problem I describe, 'msg' is successfully registered as a session variable because

if (session_is_registered('msg'))
print "|msg=$msg|";

outputs |msg=|

For some reason the value of $msg is not being transferred.

jscnet

Try

print("|msg=" . $msg . "|");

instead of

print "|msg=$msg|";

let me think about this one further if the above doesn't work...

Did you read my posting under "General" called "SESSION HELL... Please Help." and "SESSION HELL... Solved."

If you register a FORM variable into a SESSION -- it will not transfer over to another page.

So, for example, if you have an input field:

If you session_register("msg"); -- you'll be screwed.

Instead register a different session var for 'msg' -- like

session_register('s_msg');

then just do the proper associations --

$s_msg = $msg;
print("|msg=" . $s_msg . "|");

"SESSION HELL... Solved." explains this pretty well.

Jason

jscnet

Slight addition --

Does'nt matter if it's a FORM variable or not... the SESSION must have it's own set (independent) vars...

jscnet

Are you adding:

print("otherscript.php?" . session_name() . "=" . session_id();

to your links or actions?

Jason

jscnet

If you aren't adding the session_name() and session_id() to your links your probably creating a new session on each page you link to that has a session_start() on it. Hence, msg will be either non-existant or just blank.

Jason

Anon

I wasn't getting notice of all your posts even though I have 'email replies' activated. Anyway, they're coming in now.

I'll try appending the sess id manually to the url. It's not suppossed to be necessary, as php is suppossed to either read it from the cookie and if cookies are disabled, pass it automatically along with the url.

But I'll give it a shot.

jscnet

"..not suppossed to be necessary, as php is suppossed to either read it from the cookie and if cookies are disabled, pass it automatically along with the url"

Not entirely true.

You have to add the SID constant or (I like to use) session_name() . "=" . session_id() as SID liks to disappear sometimes...

Otherwise your new page will not know which session to reference, hence, it'll then probably just create a new one.

Jason