$nameError = $regMod->InputName($_POST['firstName'] . " " . $_POST['lastName']);
}
if (isset($_POST['username'])) {
    $usernameError = $regMod->InputUsername($_POST['username']);
}
if (isset($_POST['password']) || isset($_POST['passwordAgain'])) {
    $passwordError = $regMod->InputPassword($_POST['password'], $_POST['passwordAgain']);
}
if (isset($_POST['email'])) {
    $emailError = $regMod->InputEmail($_POST['email'], $_POST['email']);
}
if (isset($_POST['captcha_code'])) {
    if ($securimage->check($_POST['captcha_code']) == true) {
        if ($regMod->RequestConfirmation()) {
            //ConfirmUser is the function that will use the confirm code later. Once the confirm code is ready, a variable will be added to be given to the function for use
            $regMod->ConfirmUser();
            echo '<meta http-equiv="REFRESH" content="0;url=registrationSuccess.php"></HEAD>';
            //TODO redirect to registration sucessful page
        }
    } else {
        $catpchaError = "The code did not match. Try Again";
    }
}
function checkIsset($str)
{
    if (isset($str)) {
        echo $str;
    } else {
        return "";
    }
}
<?php

include 'header.php';
include_once 'RegistrationModule.php';
include_once 'RegistrationModule.php';
include_once 'DatabaseModule.php';
$dbMod = new DatabaseModule();
$connection = $dbMod->connect();
$regMod = new RegistrationModule($connection);
$result = false;
if (isset($_GET["registrationId"])) {
    $result = $regMod->ConfirmUser($_GET["registrationId"]);
}
?>
<div class="container">
    <center><?php 
if ($result) {
    echo "Successfully registered";
} else {
    echo "Invalid registration key";
}
?>
</center>
</div>

<?php 
include 'footer.php';