Code:
<?php
// *** Validate request to login to this site.
if (!isset($_SESSION)) {
session_start();
}
$loginFormAction = $_SERVER['PHP_SELF'];
if (isset($_GET['accesscheck'])) {
$_SESSION['PrevUrl'] = "index.html";
}
// Declaring variables
if (isset($_POST['correo'])) {
$loginUsername=$_POST['correo'];