yep

<?php
require_once 'register.php';
function check_email_address($email) {
return filter_var($email, FILTER_VALIDATE_EMAIL) ? 1 : 0;
}

function error($error){
$fullerror = "<center><div id=error><h2>Error:</h2><p>
".$error."</div></center>";
die($fullerror);
}

if (isset($_POST['submit'])) {
$username = $_POST["username"];
$beta = $_POST["beta"];
$username2 = $_POST["username"];
$password = $_POST["password"];
$email = $_POST["email"];
$password2 = $_POST["password2"];

$username = mysqli_real_escape_string($db, $username);
$email = mysqli_real_escape_string($db, $email);
$password = mysqli_real_escape_string($db, $password);
$password2 = mysqli_real_escape_string($db, $password2);
$username = addslashes($username);
$email = addslashes($email);
$password = addslashes($password);
$password2 = addslashes($password2);


	  if ($_POST['password']!= $_POST['password2'])
 {
     die("Oops! Password did not match! Try again. ");
 }


 if(strlen($_POST['password']) <= 3){
error('Sorry, that password was too short.');
}

 if(strlen($_POST['username']) <= 3){
error('Sorry, that username was too short.');
}
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
        error('Your email is an invalid email address, please recheck!');
}
if(empty($username) || empty($email) || empty($password) || empty($password2) || empty($beta))
    {
    error('You did not fill out the required fields');
    die();
    }
if(preg_match("/([<%\$#\*|>]+)/", $username))
{
   error('Illegal charcters');
}
      $sql2 = $db->prepare("SELECT email FROM penguins WHERE email = ?");
	  $sql2->bind_param("s", $email);
	  $sql2->execute();
	  $sql2->store_result();
      if($sql2->num_rows == 1) {
       $sql2->close();
       error('Email already in use!');
    }

	  $sq1 = $db->prepare("SELECT `keys` FROM `key` WHERE `keys` = ?");
      $sql1->execute(array($beta));
      if($sql1->rowCount() > 0;) {
       $sql1->close();
       error('Beta key not found!');
    }

	  $sql3 = $db->prepare("SELECT username FROM penguins WHERE username = ?");
	  $sql3->bind_param("s", $username);
	  $sql3->execute();
	  $sql3->store_result();
      if($sql3->num_rows == 1) {
       $sql3->close();
       error('Username already in use!');
    }



		$password = strtoupper(md5($password));
		require_once 'recaptchalib.php';
  $privatekey = "6LfF_hwUAAAAAA71iMegTKqO_qBn_avRQSVg5iWo";
  $resp = recaptcha_check_answer ($privatekey,
                                $_SERVER["REMOTE_ADDR"],
                                $_POST["recaptcha_challenge_field"],
                                $_POST["recaptcha_response_field"]);
  if (!$resp->is_valid) {
    die ("The reCAPTCHA wasn't entered correctly. Go back and try it again." .
         "(reCAPTCHA said: " . $resp->error . ")");
     } else {
       $query = $db->prepare("INSERT INTO penguins (`username`, `email`, `password`)VALUES (?, ?, ?)");
	   $query->bind_param("sss", $username, $email, $password);
	   $query->execute();
	   $query->close();

    $intPID = mysqli_insert_id($resDBCon);
	$queryz = $db->prepare("INSERT INTO igloos (`ID`, `owner`) VALUES ('" . $intPID . "', '" . $username . "')");
    $queryz->execute();
	$db->close();
}
       if($query) {
          echo "Thank You, your username is $username and your password is $password2";
       }

} else {

?>


 <?php
}
?>