Session Variables

Hi:

The MM_Username variable is working well across my Search, Results, etc. pages, but I would need to create another Session Variable to pass some User-entered info around. How do I do that? I've been Googling this for hours, but I haven't found the appropriate answer.

The idea would be to pass the teacher name selected by the user in the Search Page to the rest of the pages. I've tried a few things, but I always get the error message "undefined variable". Any suggestions?

Attached please find a Search and an Update pages.

Thank you for your attention

add the following code to the results page at line 1 to set a session variable for each form element from the search page:

<?php

@session_start();

if($_SERVER["REQUEST_METHOD"] == "POST")     {

    foreach($_POST as $k => $v) {

        // store as session

        $_SESSION[$k] = $v;    

    }

}

?>

the teacher element is named S_teacherName, you can use the following code on the update page to reference the session that is created:

<?php @session_start(); echo((isset($_SESSION["S_teacherName"]))?$_SESSION["S_teacherName"]:"") ?>

Jason:

Thank you for your reply.

I suppose $v stands for the name of the form element (i.e., S_teacherName) What does $K stand for? A Session Variable name I should come up with?

$k stands for the key, or element, name. $v stands for the value.


so this line:
$_SESSION[$k] = $v;

creates a session that has the name of the form elements, and sets the value of the session to the value of the form element.

so your S_teacherName form element gets stored in a session named S_teacherName with the value that was posted.

Jason:

I Replaced both $k with S_teacherName and I created a new Session variable called S_teacherName (is that correct?) But when trying to show the content of S_teacherName I get the following error message:

Notice: Undefined index: S_teacherName in C:\xampp\htdocs\DjibOx.com\AUpdate.php on line 266

Any suggestions?

you dont need to replace anything in the code i sent you.


use this code unchanged on the results page:

<?php 

@session_start(); 

if($_SERVER["REQUEST_METHOD"] == "POST")     { 

    foreach($_POST as $k => $v) { 

        // store as session 

        $_SESSION[$k] = $v;     

    } 

} 

?>

and this code unchanged:

<?php @session_start(); echo((isset($_SESSION["S_teacherName"]))?$_SESSION["S_teacherName"]:"") ?>

to display the S_teacherName session variable value

Jason:

I entered the code unchaged in the corresponding pages, but it doesn't display anything on the AUpdate page. What I am not doing right?

I have created a support ticket so we can look into this issue further.

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If anyone else is experiencing this same issue, please append to this thread.