Kaylyn's Cookie Demo

This demonstrates how a COOKIE works, including how to delete and refresh the COOKIE.

• SUBMIT VALUES will write a COOKIE to your computer using the first and second variables you provide below.
• REFRESH FIELDS will read the COOKIE from your computer and display contents below.
• DELETE COOKIE will delete the COOKIE from your computer.
• The COOKIE will only last 60 seconds. To see this happen, wait for 60 seconds after submitting, then refresh the page. When you do this, the COOKIE will disappear!

The current value of the cookie is:

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Cookie Variables

Variable #1:
Variable #2:

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CODE FOLLOWS

<?php
error_reporting(E_ALL);
$self = basename($_SERVER['SCRIPT_NAME']);

$cook = '';
$first_variable = '';
$second_variable = '';

$submit = isset($_POST['submit']) ? $_POST['submit'] : null;

switch ($submit)
{
    case 'Submit':

        $first_variable = isset($_POST['first_variable']) ? $_POST['first_variable'] : null;
        $second_variable = isset($_POST['second_variable']) ? $_POST['second_variable'] : null;

        if (($first_variable != null && $second_variable != null))
        {
            $full_variable = $first_variable . ' ' . $second_variable;  // +60*60*24*365 = 1 year
            setcookie('variable', $full_variable, time() + 60);    // NOTE: +60 = 60 seconds    (+3600 = one hour)
        }
        break;

    case 'Refresh':
        break;

    case 'Delete Cookie':

        /* Note the time is set to past so the cookie will time out */
        setcookie('variable', '', time() - 86400);    // -86400 = -one day (-24 hours/yesterday)
        break;
}

if (isset($_COOKIE['variable']))
{
    $cook = $_COOKIE['variable'];
}

include('includes/header.php');
?>

<h1>Kaylyn's Cookie Demo</h1>

<h2>
    This demonstrates how a COOKIE works, including how to delete and refresh the COOKIE.
</h2>

<ul class="circle">
    <li>SUBMIT VALUES will write a COOKIE to your computer using the first and second variables you provide below.</li>
    <li>REFRESH FIELDS will read the COOKIE from your computer and display contents below.</li>
    <li>DELETE COOKIE will delete the COOKIE from your computer.</li>
    <li>The COOKIE will only last 60 seconds. To see this happen, wait for 60 seconds after submitting, then refresh the page.
        When you do this, the COOKIE will disappear!
    </li>
</ul>

    <p>
        The current value of the cookie is: <span class="red"><?php echo($cook); ?> </span>
    </p>

    <hr>

    <form name="my_form" action="<?php echo($self); ?>" method="post">
        <table>

            <fieldset>
                <legend>Cookie Variables</legend>
                <label for="first_variable">Variable #1:</label>
                <input type="text" size="15" id="first_variable" name="first_variable" value="">
                <br>
                <label for="second_variable">Variable #2:</label>
                <input type="text" size="15" id="second_variable" name="second_variable" value="">
            </fieldset>

        </table>
        <br>
        <input type="submit" name="submit" value="Submit">
        <input type="submit" name="submit" value="Refresh">
        <input type="submit" name="submit" value="Delete Cookie">
    </form>

    <br>


<?php
include('includes/footer.php');
?>

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