我的会话不会奏效

Question

Register Page:

$_SESSION['namex']=$_POST['username'];
$_SESSION['passx']=$_POST['pass'];
$_SESSION['confirmpassx']=$_POST['confirmpass'];
$_SESSION['emailx']=$_POST['email'];
$_SESSION['confirmemailx']=$_POST['email2'];
$_SESSION['keyx']=$_POST['byond'];

Index Page

$namex=$_POST['username'];
$passx=$_POST['pass'];
$pass2x=$_POST['confirmpass'];
$emailx=$_POST['email'];
$email2x=$_POST['email2'];
$ByondKeyx=$_POST['byond'];
str_replace($namex,$_SESSION['namex'],$namex);
str_replace($passx,$_SESSION['passx'],$passx);
str_replace($pass2x,$_SESSION['confirmpassx'],$pass2x);
str_replace($emailx,$_SESSION['emailx'],$emailx);
str_replace($email2x,$_SESSION['confirmemailx'],$email2x);
str_replace($keyx,$_SESSION['keyx'],$keyx);

Alright, so what these codes are supposed to do is the Register Page is doing it's thing (I think) and the Index page is a page that if something is wrong like used Username or password or the Username is invaild then the index page comes in and makes another form with the same data as the Register page. sorry if it's hard to read/understand. If you wanted to see my website and see what I mean then here's the link: http://snyp.freeoda.com Thanks for reading and please help.

Answer 1

Add session_start() to the top of each file And add $_SESSION['varname'] in front of each str_replace call. (or whatever you're trying to assign to, can't quite tell)

Answer 2

Do you have the session_start(); function call at the very beginning of your code?
Note: No newlines, whitespaces are allowed before it.

Answer 3

First off, this answer assumes you have session_start() at the top of both scripts and that no errors / warnings are visible when the page is shown (using error_reporting(-1) and ini_set('display_errors', 'On') .

Your register page stores the posted fields inside the session:

$_SESSION['namex']=$_POST['username'];

That's all fine; let's assume that you redirect back to the index page. The index page can then take the values from the session directly:

$namex = $_SESSION['namex'];

Assuming the form on the index page uses $namex to build the form.