public function addMessage($key, $msg)
 {
     parent::addMessage($key, $msg);
     $this->setFlashMessages();
 }
-->
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <!-- Latest compiled and minified CSS -->
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
        <!-- Optional theme -->
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">
    </head>
    <body>
        <h1>Test Message</h1>
        <div class="text-primary" style="font-size:20px; margin-left:20px;">
        <?php 
// put your code here
include './models/IMessage.php';
include './models/MessageClass.php';
$message = new MessageClass();
$message->addMessage('test', 'my test message');
var_dump($message->getAllMessages());
echo '<br />';
var_dump($message instanceof IMessage);
echo '<br />';
var_dump($message->removeMessage('test'));
echo '<br />';
var_dump($message->getAllMessages());
?>
        </div>
    </body>
</html>