Session demo in a nutshell - Writing PHP

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Session demo in a nutshell

Posted by admin (Graham Ellis), 3 September 2002

This tiny demosntration sets up a session, registers a variable, maintains state, and eventually destroys the session. Users start at "7" and keep doubling the number until they're over 200, at which point the demo finishes.

Works beautifully, even when there's lots of users around at the same time!

Code:

<?php
session_start();
if (! session_is_registered("sofar")) {
session_register("sofar");
$sofar = 7;
} else {
if ($sofar < 200) {
$sofar *= 2;
} else {
session_destroy();
}
}
?>
<title>Stepping up!</title>
<body bgcolor=white >
<h2>Demonstration of a session</h2>
Value is ... <?php echo $sofar;?>
</body>

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