<?php session_start(); include 'Core/Controller.Vista.php'; $vi = new Vista(); if ($_POST) { $vi->ValidaLogin($_POST['txtUsuario'], $_POST['txtContrasena']); } else { foreach ($_SESSION as $key => $value) { unset($_SESSION[$key]); } session_destroy(); } ?> <!DOCTYPE html> <html> <head> <title>Login Biblioteca</title> </head> <body> <form action="login.php" method="POST"> Usuario : <input type="text" name="txtUsuario" value=""><br> Contrasena : <input type="password" name="txtContrasena" value=""><br> <input type="submit" value="Ingresar"> <script type="text/javascript"> <?php if (isset($_GET['error'])) { echo "alert('" . $_GET['error'] . "');"; } ?>