more sessions questions

minuteman

What I am ultimately trying to do is connect the script PHPwebsite with a credit card gateway Authorizenet. To do so I need to retrieve the username from phpwebsite and also the session id but I can't even retrieve it from the code to get started. The username is stored in this following session variable, I believe: $SESSION["OBJ_user"]->user_id;
I've tried pulling the value with various coding such as:
echo $SESSION["OBJ_user"]->user_id;
echo $OBJ_user->user_id;
echo $user_id;

Re session id: I can pull the session_name(), which is PHPSESSID but I can't get any thing with session_id() or session_id(PHPSESSID) . Shouldn't I be able to get some type of numeric identifier to the session? Or is that all taken care of through the session name PHPSESSID?

Ultimately what I need to do is that when the user leaves the site, they are taken to the authernet via a https, which will then send the user back to a designated page on my site. (this has already been accomplished). Then I will need to retrieve the session information so that hopefullly I can pick the session back up where it was left. (This I haven't baccomplished yet).

Any help you could supply would be greatly appreciated.

fredouille

Hi minute man

it is not possible I think to retreive your session after the paiement when it goes back to the site.

most of the time before paiement a unique userid is generated and stored in the database (sometime full account creation before the paiement)..then you send to the paiement systeme the userid in a addtionnal var and get it back after..be carefull it must be secured....you should also add a md5 key to be sure that somebody else won't take the return url just sending a userid..

bye

mattsinclair

Try

print_r($_SESSION);

to see everything that is being passed through to the session. if it's coming from another site, i don't think it will be stored in the session... it would probably be stored in the regular args...

to get the session id, do these work:

echo SID;
echo $PHPSESSID;
$_SESSION["OBJ_user"]["user_id"]; // if it's an array

are you sure a session is active? if it's not stored in the cookies or command line, session_start() wont reutrn anyhting.

not really clear as to what you're doing, but maybe this will help you debug.

minuteman

Thanks Matt,

That "print_r($_SESSION);" is quite the function, just what I needed! And it is going to be very useful to me in the future too. Thanks.

Now what I hope is that if I send the session id over to the gateway in a hidden field and then retrieve the value in the POST, that I will then be able to use the session id to continue on with the same session?

I'm working quite a bit now with a few of the major php scripts such as phpwebsite, phpnuke, and moodle. Whenever you try to incorporate any custom pages into these scripts you run into this problem of how to pick up where you left off.

Does anyone have any pointers for this type of coding problem?

mattsinclair

well, another tip for print_r(), is to use <pre> tags, since it's already formatted with \n instead of <br>

print "<pre>".print_r($_POST)."<pre>";

^- try that one, it'll show all the variables you pass via the form

i suggest you do

<?php  phpinfo();  ?>

and study the different global variables that php uses, you'll learn a lot of new vars you can use