Reg session vars

zoobie

I'm still kinda confused on the official way to register session vars posted from a form with super-globals and v4.3. Perhaps a good tutorial or clarification here is needed. It's working now...but I've seen other methods using session_register. I'm also mixed up about using $POST with $SESSION. Are both needed?Thanks

What I'm using now (posted from a form page):
session_start();
header("Cache-control: private");
$email = $_SESSION["email"];

more vars are posted to this page...so, continuing the session:
session_start();
$txn_id = [$SESSION['txn_id'];
$txn_id = $POST['txn_id'];

finally ending up in a mailer:
session_start();
$message = "Your id# is $txn_id";
mail($email,$subject,$message,$headers);

and displaying on a confirmation page:
session_start();
session_destroy();
echo "Your email is $email and your id# is $txn_id";
exit;

Like I said...me lost.
Thanks for any help...ugh :rolleyes:

tuf-web_co_uk

if you havent got register_globals on then session_register will not work (according to the manual, i havent tried it)

to give a session a value what you need to do is something like the following, your script although works, according to you has a line which is unnecessary

$txn_id = $_POST['txn_id'];

something like this will be better

<?
session_start();
$_SESSION["txn_id"] = $_POST["txn_id"];
?>

so then $message = "Your id# is $txn_id";
would become

$message = "Your id# is $_SESSION["txn_id"]";

does this answer your question?!

zoobie

Kinda...but I thought if I used $txn_id = [$SESSION['txn_id']; and turn the session var back into a simple variable, I could simply use
session_start();
echo "$txn_id"; on any pages...without having to always use [$SESSION['txn_id'];

Correct?
Thanks

tuf-web_co_uk

not quite sure on that :S

but if it works then nice 1 🙂

Weedpacket

Originally posted by zoobie
Kinda...but I thought if I used $txn_id = [$SESSION['txn_id']; and turn the session var back into a simple variable, I could simply use
session_start();
echo "$txn_id"; on any pages...without having to always use [$SESSION['txn_id'];

Correct?
Thanks

Not quite, but close...

session_start();
$txn_id = &$_SESSION['txn_id'];
....

And for the rest of the script you can use $txn_id wherever you want to refer to the session variable; $_SESSION['txn_id'] will be kept synchronised. Note that this assumes $_SESSION['txn_id'] already exists.

zoobie

Yep...I saw that "[" was a typo...Ok...Thanks 😃