<?php
if (isset($_POST["username"]) AND isset($_POST["nb"]) AND isset($_POST["word"])) {
    $username = htmlspecialchars($_POST["username"]);
    $nb = htmlspecialchars($_POST["nb"]);
    $word = htmlspecialchars($_POST["word"]);
    require_once(PATH_MODELS.$page.".php");
    if (!isset($alert) OR !$alert)
        header("Location: index.php?page=hello&username=$username");
} elseif (isset($_POST["username"]) OR isset($_POST["nb"]) OR isset($_POST["word"]))
    $alert = choixAlert("login");

require_once(PATH_VIEWS.$page.".php");