Session variables disapearing

[avingard]

I have the following problem

 

on one page I have this code:

 

session_start();

$_SESSION['var'];

header("location:page2.php");

 

I've commented out the header line and tested to make sure var registers, and it does on that page, but as soon as I redirect the page, I have this code first thing on page2

 

if(isset("$_SESSION['var']"))

{

//codecode

}

 

the problem is, isset ALWAYS returns false.  What's happening to var?

[jonsjava]

you need to add session_start(); on your other page. you can't get session variables unless your session continues. 

session_start(); doesn't mean start the session for the first time, it means start the session for this page. (layman's terms)

[kenrbnsn]

You need to call "session_start()" in every script where you use sessions.

 

Ken

(beaten ... )

[PFMaBiSmAd]

Also, this line of code does nothing -

 

$_SESSION['var'];

 

You need to make an assignment to a variable to cause it to exist or to have a value -

 

$_SESSION['var'] = "";

// or 

$_SESSION['var'] = 123;

[avingard]

Thanks tons.  Now I know 

[l0ve2hat3]

Also, there is no need for the quotations surrounding the session variable in the isset function.

 

you have:

if(isset("$_SESSION['var']"))

 

Should be:

if(isset($_SESSION['var']))

[hamza]

Dear

 

Firstly you need to start the session as you do

secondly you need to give it a value to see

on different pages

 

  like one person shown above $_SESSION[' anyvarialbe'] = 'value or variable you like to give here ';

 

  and

 

  isset() and empty() both works same but better is to use the empty()

  because it is much better then isset() function.

 

  and always use like this in the following funtions

  empty( $_SESSION[' '])

 

  header("Location: redirct_pagename.php"); is the correct syntax to use.

 

  hope you get the point