lantins/gist:11222

## gistfile1.phtml
<?php

// more error details please.
error_reporting(E_ALL|E_STRICT);
ini_set('display_errors', true);

//setup session
ini_set('session.use_only_cookies', true);
session_name('easy_maths_game');
session_start();

//generate sum, plus store sum so that user can guess again if correct gues was made
function create_or_get_sum()
{
  if (isset($_SESSION['sum']) == false) {
    $number1 = rand(1,10);
    $number2 = rand(1,10);
    $sum = $number1 + $number2;

    $_SESSION['sum'] = $sum;
    $_SESSION['number1'] = $number1;
    $_SESSION['number2'] = $number2;
  }

  $sum = $_SESSION['sum'];
  $number1 = $_SESSION['number1'];
  $number2 = $_SESSION['number2'];

  return array($sum, $number1, $number2);
}

//check guess is same as sum answer
function check_guess($guess)
{
  $sum = create_or_get_sum();
  if ($guess == $sum[0]) {
    // unset the sum for a new game
    unset($_SESSION['sum']);
    return true;
  }

  return false;
}

// we call this; encase its the first time the user has accessed the site.
list($sum, $number1, $number2) = create_or_get_sum();

$winner = false;
$guess = false;

// see if the user has guessed at the number.
if (isset($_POST['guess'])) {
  $guess = $_POST['guess'];
  $winner = check_guess($guess);
}

?>

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
  <head>
    <title>Easy Maths Game</title>
  </head>
  <body>
    <h1>Easy Maths Game</h1>
    <?php if ($winner == false): ?>
      <p>
        Answer this easy maths question:<br />
        <strong><?php echo $number1 ?> + <?php echo $number2 ?> = ????</strong>
      </p>

      <?php if ($guess != false): ?>
        <p>
          <strong>You guessed:</strong> <?php echo $guess ?><br />
          Unfortunately for you loser thats the wrong answer.
        </p>
      <?php endif; ?>

      <form method="post" action="/easy_maths_game.php">
        <p>Your Guess: <input type="text" name="guess" /></p>
        <p><input type="submit" /></p>
      </form>
    <?php else: ?>
      <p><strong>Your a winner!</strong> You successfully answered correctly!</p>
      <p><a href="/easy_maths_game.php">Click Here</a> to play again.</p>
    <?php endif; ?>

    <hr />
    <h5>Debug Data</h5>
    <pre><?php var_dump($_SESSION) ?></pre>
  </body>
</html>
	<?php

	// more error details please.
	error_reporting(E_ALL\|E_STRICT);
	ini_set('display_errors', true);

	//setup session
	ini_set('session.use_only_cookies', true);
	session_name('easy_maths_game');
	session_start();

	//generate sum, plus store sum so that user can guess again if correct gues was made
	function create_or_get_sum()
	{
	if (isset($_SESSION['sum']) == false) {
	$number1 = rand(1,10);
	$number2 = rand(1,10);
	$sum = $number1 + $number2;

	$_SESSION['sum'] = $sum;
	$_SESSION['number1'] = $number1;
	$_SESSION['number2'] = $number2;
	}

	$sum = $_SESSION['sum'];
	$number1 = $_SESSION['number1'];
	$number2 = $_SESSION['number2'];

	return array($sum, $number1, $number2);
	}

	//check guess is same as sum answer
	function check_guess($guess)
	{
	$sum = create_or_get_sum();
	if ($guess == $sum[0]) {
	// unset the sum for a new game
	unset($_SESSION['sum']);
	return true;
	}

	return false;
	}

	// we call this; encase its the first time the user has accessed the site.
	list($sum, $number1, $number2) = create_or_get_sum();

	$winner = false;
	$guess = false;

	// see if the user has guessed at the number.
	if (isset($_POST['guess'])) {
	$guess = $_POST['guess'];
	$winner = check_guess($guess);
	}

	?>

	<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
	<head>
	<title>Easy Maths Game</title>
	</head>
	<body>
	<h1>Easy Maths Game</h1>
	<?php if ($winner == false): ?>
	<p>
	Answer this easy maths question:<br />
	<strong><?php echo $number1 ?> + <?php echo $number2 ?> = ????</strong>
	</p>

	<?php if ($guess != false): ?>
	<p>
	<strong>You guessed:</strong> <?php echo $guess ?><br />
	Unfortunately for you loser thats the wrong answer.
	</p>
	<?php endif; ?>

	<form method="post" action="/easy_maths_game.php">
	<p>Your Guess: <input type="text" name="guess" /></p>
	<p><input type="submit" /></p>
	</form>
	<?php else: ?>
	<p><strong>Your a winner!</strong> You successfully answered correctly!</p>
	<p><a href="/easy_maths_game.php">Click Here</a> to play again.</p>
	<?php endif; ?>

	<hr />
	<h5>Debug Data</h5>
	<pre><?php var_dump($_SESSION) ?></pre>
	</body>
	</html>