<? require('connect.php'); ?>
<?

$user=$_POST['username'];
$pass=$_POST['password'];
$email=$_POST['mail'];

$check="SELECT id FROM user WHERE email = '" . $email . "' OR username = '" . $user . "'";
$resultcheck=mysql_query($check) or die (mysql_error());
$matches=mysql_num_rows($resultcheck);

if($matches != 0)
{
    $errors[] = "Nick and/or email is already in use.";
}
else
{
    //Not yet used
    //Is password 4 chars long at least ?
    if(strlen($pass) > 4)
    {
        //Is the username also 4 chars long at least
        if(strlen($user) > 4)
        {
            $pass=sha1($pass);

            $reg="INSERT INTO user (username, password, email) VALUES ('" . $user . "','" . $pass . "','" . $email . "')";

            mysql_query($reg) or die (mysql_error());

        }
        else
        {
            $errors[] = "Username must be 4 chars long";
        }
    }
    else
    {
        $errors[] = "Password must be more than 4 chars long.";
    }
}

mysql_close();

for($i = 0; $i < count($errors); $i++)
{
    echo $errors[$i]."\n";

    }
?>