Mine

<?php
if (empty($_POST['money'])) {
?>
<form action="" method="post">
Money: <input type="text" name="money" />
<input type="submit" value="Gamble" />
</form>
<?php }
$number=rand(1,2);
if (($number==\"1\") && (isset($_POST['money']))) {
echo "Right!";
else
echo "Wrong!";
}
?>