PHP_TP3/controllers/c_hello.php

<?php

$user = false;
if (isset($_POST["username"]) AND $_POST["username"]) {
    $username = htmlspecialchars($_POST["username"]);
    require_once(PATH_MODELS.$page.".php");
    if ($user)
        require_once(PATH_VIEWS.$page.".php");
    else
        require_once(PATH_VIEWS."accueil.php");
}