Home/ Questions/Q 6969427
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-27T16:34:47+00:00

I’m playing with small exercise to understand sessions and posts, but can’t get them

  • 0

I’m playing with small exercise to understand sessions and posts, but can’t get them to behave together. Can you help?

Situation

I have the following pages

  1. Page 1
  2. Page 2

On page 1 I have a single input form. The input is a checkbox, ex:

<input type="checkbox" name="test" >

  • I want to be able to arrive at page 1 without receiving errors

  • I would like the unselected state of the checkbox to have a value of 0, and the selected state a value of 1

  • Whatever value is assigned (by way of the checkbox), I would like that value stored in a session that can travel from page 1 to page 2 and back.

  • Once a session value is stored, I would like to select or deselect the checkbox on page 1 to change the value, allowing me to travel from page 1 to page 2 and back with the new value.

Here is my code for this (which does not work):

Page 1

Note: I have this code on the same page as the form. The checkbox name="test"

if (isset($_POST['test']))
{
$_SESSION['test'] = $_POST['test'];
}

if (empty($_SESSION['test']))
{
$_SESSION['test'] = 0;
}   
else
{
$_SESSION['test'] = 1;
}

var_dump($_SESSION['test']);

Page 2

var_dump($_SESSION['test']);

Thanks in advance for you help.

UPDATE

If you would like to see the full code for both pages, I have posted them here:

Page 1:

http://www.diigo.com/item/note/17zt6/ux45

Page 2:

http://www.diigo.com/item/note/17zt6/gv6k

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Use this code for your page1.php

    <?php 
session_start();

if(isset($_POST['submit']))
{
    if (isset($_POST['test']))
    {
        $_SESSION['test'] = $_POST['test'];
    }
    else
    {
        $_SESSION['test'] = 0;
    }
}
if (empty($_SESSION['test']))
{
    $_SESSION['test'] = 0;
    $checked = '';
} 
else
{
    $_SESSION['test'] = 1;
    $checked = 'checked="checked"';
}
var_dump($_SESSION['test']);
?>


<!DOCTYPE html>
<html>
<head>
    <title>Page 1</title>
</head>
<body>
    <form action="page1.php" method="post">
        Test:
        <input type="checkbox" name="test" <?php echo $checked; ?>>
        <input type="submit" name="submit" value="Test!">
    </form>
    <br />
    <a href="page2.php">Continue</a>
</body>
</html>
    • 0