choices.php
<html>
<head>
<title>choice</title>
</head>
<body>
<h1>Choose a Link</h1>
<form action="jump.php" method="post">
<input name="stuff" type="hidden" value="junk" />
<select name="url">
<option value="first.php">First Page</option>
<option value="second.php">Second Page</option>
</select>
<input type="submit" value="Go">
</form>
</body>
</html>
jump.php
<?php
// All other processing code here.
// *No* printing to browser before 'header' function.
session_start();
if( $_SERVER['HTTP_REFERER'] == 'http://bohr.wlu.ca/dbrown/test/choice.php' ) {
$_SESSION['post'] = $_POST;
header( "Location: {$_POST['url']}" );
} else {
header( 'Location: nasty.htm' );
}
?>
first.php
<?php
session_start();
?>
<html>
<head>
<title>First</title>
</head>
<body>
<h1>First</h1>
<p>$_SESSION['post']:</p>
<?php
print( '<pre>' );
print_r( $_SESSION['post'] );
print( '</pre>' );
?>
</body>
</html>
second.php
<html>
<head>
<title>Second</title>
</head>
<body>
<h1>Second</h1>
<?php
if(isset($_SESSION['view'] )) {
$_SESSION['views'] = $_SESSION['views'] + 1;
} else {
$_SESSION['views'] = 1;
}
print( "Views= {$_SESSION['views']}" );
?>
</body>
</html>