Session ...What is it?

SumitGupta

HI..

Can any one please Let me know what the hell session are ..... I am windows programemr but know learning PHP and the process i got a word Session. I know that session is for store the varibale and value for global use in your web application (CORRECT ME IF I AM WRONG).

Now I read the manual (GO Above my head)

And write the simple program which set a session vaibale in one page and read that varible in other code is

File name : Session.php

<?
$session_id=session_start();
$tmpvar="Temporary";
session_register("tmpvar");

<html>
<title>
This is the Session Test
</title>
<body>
<?
echo "Session is started <br>";
?>
<a href="session2.php">click here</a> to See the effect
</body>
</html>

file Name : Session2.php

<?
session_start();
?>
<html>
</title>
This is session test page
</title>
<body>
<? 
//session_start();
if (session_is_registered($HTTP_SESSION_VARS['tmpvar']))
{
	echo "<br> This is session variable value ".$HTTP_SESSION_VARS['tmpvar'];
}
else
{
	echo "<br>No session variable found";
}
?>
<br>
<a href="session.php">Go Back</a>
</body>
</html>

But when i execute (Run ) the session.php and go to Session2.php it show that no session vaibale is set . WHY?

Thanx for good answer you get a small choclate for it

Vikasumit

mcrbids

Well, actually, not.

Try this:

<?
session_register('vars');
$vars['cow']='California';
echo '<A HREF="fifle2.php>go</A>";
?>

fifle2.php

<?
session_register('vars);
priint_r($vars);
echo $
?>

SumitGupta

Hi..

Your Solution works fine (except some error in your code basically typing errors) But now my question remain the same why my code is not working....

Vikasumit

thorpe

im only a php newb too, but im from an asp background and session or the idea of session are much the same. (just dont relie on my code hehe) i'll try to explain, sessions are just variables created that are unique to each user. each user can have there own $_SESSION['logged_in'] variable set for instance.

no other users should be able to gain access to this variable, so whenever you check this variable you are checking it for the current user.

so, on page one.php you could have someone log in:

<?php
    start_session();
    $_SESSION['logged_in'] = TRUE;
?>

then on any page where your user needs to be logged in to view the page, you could check this variable:

<?php
    start_session();
    if (!$_SESSION['logged_in'] {
      // user not logged in, show login form
    } else {
      // user logged in, display page
    }
?>

like i said, dont relie on my code, but i hope this helps with some sort of explination.

SumitGupta

Hi..

I would like to thanx u for help it help a lot in understanding the Session... Any other suggestion, text or help is welcome on this topic though....Need to learn more about hte topic..