<?php
/*
secretPath class
version 1.0 10/21/2016
Authorize access based on the sequence of user clicks
*/
//start session - sequence saved in $_SESSION super global
session_start();
//include class source
include('secretpath.class.php');
//instantiate the class or define class object from saved data
if( empty($_SESSION['secpth']) ){
$path = array(1,2,3,2,2);
$secpth = new secretPath('link',$path);
}else{
$secpth = unserialize($_SESSION['secpth']);
}
//test user click sequence and send to secret page if sequence completed
//correctly
if( $secpth->validatePath() === true ){
//it is important to save the class object before re-directing
$_SESSION['secpth'] = serialize($secpth);
header('location: secret.php');
exit;
}
//save class object to session
$_SESSION['secpth'] = serialize($secpth);
?>
<html>
<head>
<title>Secret Path Example</title>
</head>
<body>
Default secret path is link: 1,2,3,2,2<br><br>
<a href="example.php?link=1">Link 1</a><br>
<a href="example.php?link=2">Link 2</a><br>
<a href="example.php?link=3">Link 3</a><br>
</body>
</html>
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