$_SESSION problem

Elhombrebala

I have a password validation page thet redirects user who introduced right pass and user to another page with the following code on top:

<?php
//page2
session_start();
if (session_is_registered('user')){
if(!isset($_SESSION['langfixed'])){
$_SESSION['lang']='en';}
}
else{
header("Location: entry.php?baduser=1");
}

Validation works nice, but if I echo $SESSION['lang'], it will only appear when page is loaded for the first time, if I refresh the page $SESSION['lang'] desappears.
Why it doesn't remain?

drew010

perhaps because after you run it once the if statement no longer passes the test, but also you should not be using session_is_registered in conjunction with $_SESSION. It will mess with your data.

from the manual

Note: If $SESSION (or $HTTP_SESSION_VARS for PHP 4.0.6 or less) is used, use isset() to check a variable is registered in $SESSION.

Caution

If you are using $_SESSION (or $HTTP_SESSION_VARS), do not use session_register(), session_is_registered() and session_unregister().

Elhombrebala

I have removed the "session_is_registered" and now my code is more like manual saids:

<?php 
//page2 
session_start(); 
if (!isset($_SESSION['user'] && !isset($_SESSION['lang'])){ 
header("Location: entry.php?baduser=1"); 
}

The problem: If I echo $_SESSION['lang'] I get absolutely nothing!

Why?

drew010

if (!isset($_SESSION['user'] && !isset($_SESSION['lang'])){ 

//should be

if (!isset($_SESSION['user']) && !isset($_SESSION['lang'])){

Elhombrebala

Ooops!

By the way, it doesn't work.
As I said, echoing the $_SESSION vars do not echo nothing!!

drew010

whats the code for the two pages i see these 2 snippets but neither echo the lang value. have you ensured that the block that sets it is actually being run.

Elhombrebala

The admission page:

<?php
include("linkmaster.php");
$ssql = "SELECT * FROM users WHERE user='$user' and password='$password'";
$rs = mysql_query($ssql,$conexion); 
if (mysql_num_rows($rs)!=0){ 
session_start();
$_SESSION['user'] = session_id();
$_SESSION['lang'] = 'en';

In the other page:

if (!isset($_SESSION['user']) && !isset($_SESSION['lang'])){ 
header("Location: entry.php?baduser=1");  

}
echo $_SESSION['lang']

If I echo it here I get the value, but If I refresh the page the value is lost

drew010

in the admission page, try moving the session_start() call to the top of the script before the include.
and do you have the session_start on the next pages?

LoganK

This is what I always say for debugging: start really small and simple, then work up from there.

Make page1.php with "session_start()" and "$SESSION['lang'] = 'en'". Then make page2.php with "session_start()" and "echo $SESSION['lang']". If it works then something is wrong with your code during assignment, or checking.

Drakla

http://phpbuilder.com/board/showthread.php?t=10259393

That was over two years ago.