PHP程序在本地主机上完美，不能在现场工作

下面实际上是我的php类的赋值。我在我的本地主机上算出来的。一切都运行得很完美，但当我把它上传到我的现场时，逻辑就全搞砸了。这是一个典型的"猜谜游戏"节目。没有错误报告。

唯一的问题是，当在实时服务器上时，用户可以输入任何 -甚至"1"，这表明他们的条目"太高"。

这可能是我的网站的(fatcow) php设置的问题吗?我认为正在发生的事情是，出于某种原因，它将我的会话变量显示为"零"，而不是rand(1,10)数字。为什么会发生这种情况?我如何修复它，使它的工作原理与它在我的本地主机上一样?

代码:

<?php
session_start();
error_reporting (E_ALL | E_STRICT);
$pageTitle = "Guessing Game";
include('includes/header.inc.php');
if (isset($_POST['finish']))
{
        unset($_SESSION);
        $_SESSION = array();
        session_destroy();
        die ('<h2>Congratulations</h2>
              <p>Your session has been reset.<br />
              Click <a href="guessingGame.php">HERE</a> to play again!</p>');
}
elseif (isset($_POST['guess']))
{
    $_SESSION['count'] = $_SESSION['count'] + 1;
    $guess = $_POST['guess'];
    if (!ctype_digit($guess) || $guess <= 0 || $guess > 10 )
    {
        echo'<p span class="italic">SORRY, that entry is invalid</span></p>';
    }
    else 
    {
        if ($guess == $_SESSION['num'])
        {
            die ('<h1>Hooray!</h1>
            <h2>You got it correct<br />
                And it only took you ' . $_SESSION['count'] . ' tries!</h2>
            <p>Click the button to finish:</p>
                <form action="guessingGame.php" method="post">
                  <input type="submit" name="submit" value="Finished" />
                  <input type="hidden" name="finish" value="true" />
                </form></p>');
        }
        elseif ($guess < $_SESSION['num']) 
        {
            echo '<h2>Sorry, that is incorrect.</h2>
                <p>Your guess is too LOW</p>';
        }
        else 
        {
            echo '<h2>Sorry, that is incorrect.</h2>
                <p>Your guess is too HIGH</p>';
        }               
    }
}
else
{
    $_SESSION['num'] = rand(1,10);
    $_SESSION['count'] = 0;
}
?>      
<h1>Please guess a number between 1 and 10</h1>
<p>
    <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" >
        <input type="text" name="guess" size="2" />
        <input type="submit" name="submit" value="Submit" />
    </form>
</p>
<?php
include('includes/footer.inc.php');
?>