function blockBrowser()
{
include "usefullInformation.php";
$browser = new usefullInformation();
if ($browser->getBrowser($browser->getUserAgentString()) === "Internet Explorer 9") {
die("Features of this website aren't supported in Internet Explorer 9. Please upgrade your browser.");
}
}
<!DOCTYPE html>
<html>
<head>
<?php
include "includes/dependencies.php";
include "php/database.php";
?>
<?php
if (isset($_SESSION["username"])) {
?>
<title>My Account</title>
<?php
$usefulInformation = new usefullInformation();
?>
<script type="text/javascript">
function init(username){
$.ajax({
type:"post",
url:"php/getUserDetails.php",
data:"username="******"#admintab").hide();
var TheDetails = jQuery.parseJSON(data);
$("#welcome").html("Hey, "+TheDetails.firstname);
$("#username").html(TheDetails.username);
$("#firstname").val(TheDetails.firstname);
$("#surname").val(TheDetails.surname);
$("#username").val(TheDetails.username);
$("#email").val(TheDetails.email_address);
$("#editusername").val(TheDetails.username);
<?php
session_start();
include "database.php";
include "usefullInformation.php";
if (isset($_POST["username"])) {
$information = new usefullInformation();
$username = preg_replace("#[^a-z0-9 ]#i", "", $_POST["username"]);
$password = preg_replace("#[^a-z0-9!?\$]#i", "", $_POST["password"]);
$ip = $information->getIPAddress();
$OS = $information->getOS($information->getUserAgentString());
$d = date("d/m/o H:i:s");
$type = "Login Error";
$browser = $information->getBrowser($information->getUserAgentString());
if (empty($username) && empty($password)) {
echo "A username and password is required! This error has been recorded";
$message = "No username or password entered";
$error = $database->prepare("INSERT INTO `logs` (type,ip,logged_date,browser,operating_system,messages) VALUES (:type,:ip,:d,:browser,:os,:m)");
$error->execute(array(":type" => $type, ":ip" => $ip, ":d" => $d, ":browser" => $browser, ":os" => $OS, ":m" => $message));
} else {
$query = $database->prepare("SELECT * FROM `users` WHERE username=:username");
$query->execute(array(":username" => $username));
if ($query->rowCount() > 0) {
while ($r = $query->fetch(PDO::FETCH_OBJ)) {
if ($r->username !== $username) {
echo $username . " Doesn't exist. This error has been recorded";
$message = "Incorrect username entered";
$error = $database->prepare("INSERT INTO `logs` (type,ip,logged_date,browser,operating_system,messages) VALUES (:type,:ip,:d,:browser,:os,:m)");
$error->execute(array(":type" => $type, ":ip" => $ip, ":d" => $d, ":browser" => $browser, ":os" => $OS, ":m" => $message));
} else {
if ($r->password === md5($password)) {
