Wednesday, 4 October 2017

How to create PHP Login Script using Cookies



If you are looking for tutorial on How to create PHP Login Logout page by using Cookies, then you have come to right place, in this post we have describe How to make PHP login script by using Cookies. We have already describe How to Create PHP Login form by using Session with different option like PHP PDO, object Oriented and in Codeigniter also. But in all post we have use Session for make PHP login logout script. But here we have implement Cookies for developed PHP Login Logout script.

We all know Session are more secured than Cookies. Sessions data are store on server while Cookies data are store on user browser. Cookies are lighter than Session and Cookies can be easily hack. These are all drawback of using Cookies for Login system. But here we have only describe we can also use Cookies for developing Login system in PHP. We have make this tutorial only for learning purpose.

So, In this post we will make simple Login form with logout form. For password verification we have use password_verify() hash method for validate encrypted password. If user has enter proper data then after in this script we have create one cookie variable which we can access from whole system by using setcookies function. After creating coookie variable now we want to validate that cookie variable, so we have use isset() function, by using this function we can validate this $_COOKIE variable. After login into system now we want to logout from system, for logout from system also we have setcookie() and by using this function we can also destroy cookie value also. So, this way we can use setcookie() function we can create or destroy value also. After destroying cookie value now we can logout from system. This way we can use COOKIE for developing login form in PHP







Source Code


database_connection.php



<?php
//database_connection.php
$connect = new PDO("mysql:host=localhost;dbname=testing2", "root", "");
?>


login.php



<?php
//login.php

include("database_connection.php");

if(isset($_COOKIE["type"]))
{
 header("location:index.php");
}

$message = '';

if(isset($_POST["login"]))
{
 if(empty($_POST["user_email"]) || empty($_POST["user_password"]))
 {
  $message = "<div class='alert alert-danger'>Both Fields are required</div>";
 }
 else
 {
  $query = "
  SELECT * FROM user_details 
  WHERE user_email = :user_email
  ";
  $statement = $connect->prepare($query);
  $statement->execute(
   array(
    'user_email' => $_POST["user_email"]
   )
  );
  $count = $statement->rowCount();
  if($count > 0)
  {
   $result = $statement->fetchAll();
   foreach($result as $row)
   {
    if(password_verify($_POST["user_password"], $row["user_password"]))
    {
     setcookie("type", $row["user_type"], time()+3600);
     header("location:index.php");
    }
    else
    {
     $message = '<div class="alert alert-danger">Wrong Password</div>';
    }
   }
  }
  else
  {
   $message = "<div class='alert alert-danger'>Wrong Email Address</div>";
  }
 }
}


?>

<!DOCTYPE html>
<html>
 <head>
  <title>How to create PHP Login Script using Cookies</title>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
 </head>
 <body>
  <br />
  <div class="container">
   <h2 align="center">How to create PHP Login Script using Cookies</h2>
   <br />
   <div class="panel panel-default">

    <div class="panel-heading">Login</div>
    <div class="panel-body">
     <span><?php echo $message; ?></span>
     <form method="post">
      <div class="form-group">
       <label>User Email</label>
       <input type="text" name="user_email" id="user_email" class="form-control" />
      </div>
      <div class="form-group">
       <label>Password</label>
       <input type="password" name="user_password" id="user_password" class="form-control" />
      </div>
      <div class="form-group">
       <input type="submit" name="login" id="login" class="btn btn-info" value="Login" />
      </div>
     </form>
    </div>
   </div>
   <br />
   <p>Admin email - john_smith@gmail.com</p>
   <p>Admin Password - password</p>
   <p>All user password is 'password'</p>
  </div>
 </body>
</html>


logout.php



<?php
//logout.php
setcookie("type", "", time()-3600);

header("location:login.php");

?>


index.php



<?php
//index.php

if(!isset($_COOKIE["type"]))
{
 header("location:login.php");
}

?>
<!DOCTYPE html>
<html>
 <head>
  <title>How to create PHP Login Script using Cookies</title>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
 </head>
 <body>
  <br />
  <div class="container">
   <h2 align="center">How to create PHP Login Script using Cookies</h2>
   <br />
   <div align="right">
    <a href="logout.php">Logout</a>
   </div>
   <br />
   <?php
   if(isset($_COOKIE["type"]))
   {
    echo '<h2 align="center">Welcome User</h2>';
   }
   ?>
  </div>
 </body>
</html>


Database



--
-- Database: `testing2`
--

-- --------------------------------------------------------

--
-- Table structure for table `user_details`
--

CREATE TABLE IF NOT EXISTS `user_details` (
  `user_id` int(11) NOT NULL,
  `user_email` varchar(200) NOT NULL,
  `user_password` varchar(200) NOT NULL,
  `user_name` varchar(200) NOT NULL,
  `user_type` enum('master','user') NOT NULL,
  `user_image` varchar(150) NOT NULL,
  `user_status` enum('Active','Inactive') NOT NULL
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=latin1;

--
-- Dumping data for table `user_details`
--

INSERT INTO `user_details` (`user_id`, `user_email`, `user_password`, `user_name`, `user_type`, `user_image`, `user_status`) VALUES
(1, 'john_smith@gmail.com', '$2y$10$cHpf3TzonURXDENRiRF0de1ycSfnM4NJ27sdwyUCf5L.sewDlkCBe', 'John Smith', 'master', 'john_smith.jpg', 'Active'),
(2, 'dona_huber@gmail.com', '$2y$10$lcLYyNeK1adgzYcBplv45uuXHFuFyWYThnj3nB2SZ/LbQvtWSoGjO', 'Dona Huber', 'user', 'dona_huber.jpg', 'Active'),
(3, 'roy_hise@gmail.com', '$2y$10$XlyVI9an5B6rHW3SS9vQpesJssKJxzMQYPbSaR7dnpWjDI5fpxJSS', 'Roy Hise', 'user', 'roy_hise.jpg', 'Active'),
(4, 'peter_goad@gmail.com', '$2y$10$n1B.FdHNwufTkmzp/pNqc.EiwjB8quQ1tBCEC7nkaldI5pS.et04e', 'Peter Goad', 'user', 'peter_goad.jpg', 'Active'),
(5, 'sarah_thomas@gmail.com', '$2y$10$s57SErOPlgkIZf1lxzlX3.hMt8LSSKaYig5rusxghDm7LW8RtQc/W', 'Sarah Thomas', 'user', 'sarah_thomas.jpg', 'Active'),
(6, 'edna_william@gmail.com', '$2y$10$mfMXnH.TCmg5tlYRhqjxu.ILly8s9.qsLKOpyxgUl6h1fZt6x/B5C', 'Edna William', 'user', 'edna_william.jpg', 'Active');

--
-- Indexes for dumped tables
--

--
-- Indexes for table `user_details`
--
ALTER TABLE `user_details`
  ADD PRIMARY KEY (`user_id`);

--
-- AUTO_INCREMENT for dumped tables
--

--
-- AUTO_INCREMENT for table `user_details`
--
ALTER TABLE `user_details`
  MODIFY `user_id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=7;

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