rollDice3.php
Source of rollDice3.php
<?php
session_start();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="EN" dir="ltr" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/xml; charset=utf-8" />
<title>rollDice3.php</title>
</head>
<body>
<h1>RollDice 3</h1>
<h2>Uses a Session Variable</h2>
<?php
function rollDie(){
global $total;
$roll = rand(1,6);
$image = "die$roll.jpg";
print <<< HERE
<img src = "$image"
alt = "roll: $roll" />
HERE;
$total = $_SESSION["total"];
$total += $roll;
$_SESSION["total"] = $total;
} // end rollDie
$count = $_SESSION["count"];
$count++;
$_SESSION["count"] = $count;
rollDie();
print " <p>Rolls: $count</p> \n";
print " <p>Total: $total</p> \n";
?>
</body>
</html>