how to redirect user to the home page after login details on submit button click
Question
Am trying to direct a user to admin dashboard after login if user name and password exist in the database. if not then direct user back to the login page. But is not working when the user enters his details instead of going to the admin dashboard page it is directed back to the login page even though users details are in the database. The problem is with the admin-dashboard.php file if I comment out "header('location:index.php');" it works perfectly but user can access the admin-dashboard without logging in form the url search bar and i don't want that way
This is my index.php
<?php
session_start();
if(isset($_SESSION['username'])){
header('location:admin-dashboard.php');
exit();
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Login | Admin</title>
<!-- <link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/v/dt/dt-1.10.22/datatables.min.css"/> -->
<link rel="stylesheet" href="assets/css/style.css" type="css/text">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.4.1/css/bootstrap.min.css"/>
<style type="text/css">
html,body{
height:100%;
}
</style>
</head>
<body class="bg-dark">
<div class="container h-100">
<div class="row h-100 align-items-center justify-content-center">
<div class="col-lg-5">
<div class="card border-danger shadow-lg">
<div class="card-header bg-danger">
<h3 class="m-0 text-white"><i class="fas fa-user-cog"></i> Admin Panel Login</h3>
</div>
<div class="card-body">
<form action="action" method="post" class="px-3 " id="admin-login-form">
<div id="adminLoginAlert"></div>
<div class="form-group">
<input type="text" name="username" class="form-control
form-control-lg rounded-2" placeholder="Username" required autofocus>
</div>
<div class="form-group">
<input type="password" name="password" class="form-control
form-control-lg rounded-2" placeholder="Password" autocomplete= required>
</div>
<div class="form-group">
<input type="submit" name="admin-login" class="btn btn-danger
btn-block btn-lg rounded-2" value="Login" id="adminLoginBtn">
</div>
</form>
</div>
</div>
</div>
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.4.1/js/bootstrap.bundle.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.1/js/all.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/sweetalert2@8"></script>
<script type="text/javascript">
$(document).ready(function(){
// sending ajax request to server
$("#adminLoginBtn").click(function(e){
if($("#admin-login-form")[0].checkValidity()){
e.preventDefault();
$(this).val('Please Wait...');
$.ajax({
url:'assets/php/admin-action.php',
method:'post',
data:$("#admin-login-form").serialize()+'&action=adminLogin',
success:function(response){
if($.trim(response) == 'register'){
window.location = 'admin-dashboard.php';
}
if(response === 'admin_login'){
window.location = 'admin-dashboard.php';
}
else{
$("#adminLoginAlert").html(response);
}
$("#adminLoginBtn").val('Login');
}
});
}
});
});
</script>
</body>
</html>
My admin-dashboard.php
<?php
session_start();
if(!isset($_SESSION['username'])){
header('location:index.php');
exit();
}
?>
<a href="assets/php/logout.php">Logout</a>
My config.php
<?php
class Database {
private $dsn = "mysql:host=localhost;dbname=database_user_system";
private $dbuser = "root";
private $dbpass = "";
public $conn;
public function __construct(){
try{
$this->conn = new PDO($this->dsn,$this->dbuser,$this->dbpass);
}catch (PDOExeception $e) {
echo 'Error :'.$e->getMessage();
}
return $this->conn;
}
// Checking Input
public function test_input($data){
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
// Error success message alert
public function showMessage($type,$message){
return '<div class="alert alert-'.$type.' alert-dismissible ">
<button type="button" class="close"
data-dismiss="alert">×</button>
<strong class="text-center"> '.$message.' </strong>
</div>';
}
}
?>
My logout.php
<?php
session_start();
unset($_SESSION['username']);
header('location:../../index.php');
?>
My admin-action.php
<?php
require_once 'admin-db.php';
$admin = new Admin();
// Handle admin login ajax Request
if(isset($_POST['action']) && $_POST['action'] == 'adminLogin'){
$username = $admin->test_input($_POST['username']);
$password =$admin->test_input($_POST['password']);
$hpassword = sha1($password);
$loggedInAdmin = $admin->admin_login($username,$hpassword);
if($loggedInAdmin !=null){
echo 'admin_login';
$_SESSION['username']= $username;
}
else {
echo $admin->showMessage('danger', 'Username or Password is Incorrect!');}
}
?>
My admin-db.php
<?php
require_once 'config.php';
//creating new object of admin class in admin-action.php
class Admin extends Database {
// Admin login
public function admin_login($username, $password)
{
$sql = "SELECT username,password FROM admin WHERE username = :username AND
password = :password";
$stmt = $this->conn->prepare($sql);
$stmt->execute(['username'=>$username,'password'=>$password]);
$row = $stmt->fetch(PDO::FETCH_ASSOC);
return $row;
}
}
?>
2 answers
solution1
0 2020-11-30 19:45:34
I think you need your location header to be an absolute path with HTTP 1.1 as specified in the PHP documentation. header('Location: http://localhost/admin-dashboard.php'); or call within exit, exit(header('Location: http://localhost/admin-dashboard.php'));
See here for more detail
solution2
0 2020-11-30 19:46:13
First of all fetch data from the database if the result is greater than 0 it redirects with the below code
<?php
require_once 'config.php';
//creating new object of admin class in admin-action.php
class Admin extends Database {
// Admin login
public function admin_login($username, $password)
{
$sql = "SELECT username,password FROM admin WHERE username = :username AND
password = :password";
$stmt = $this->conn->prepare($sql);
$stmt->execute(['username'=>$username,'password'=>$password]);
$row = $stmt->fetch(PDO::FETCH_ASSOC);
if($row > 0){
header('location:index.php);
}else{
header('location:error.php);
}
}
}
?>
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