Login functionality in PHP

Lecture 06

Login functionality in PHP

Creating a login page in PHP involves handling user input, verifying credentials against a database, and managing user sessions. Below is an example of how to implement a basic login system using PHP

Step 1: Create the HTML Form

Create a simple HTML form for user login.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Bootstrap demo</title>
  <link href="bootstrap-5.2/css/bootstrap.min.css" rel="stylesheet">
  <link href="css/custom.css" rel="stylesheet">
</head>
<body>
<div class="wrapper">
  <main>
    <div class="container" style="margin-top:70px;">
      <div class="row">
        <div class="col-md-6" style="background:#ccc; margin:0 auto;
        padding:16px 40px;">
          <h2>
            <center>
              Login
            </center>
          </h2>
          <br>
          <form method="post" action="#">
            <input type="email" name="TxtEmail" class="form-control"
            placeholder="Enter Your Email">
            <br>
            <input type="password" name="TxtPassword" class="form-control"
            placeholder="Enter Your Password">
            <center>
              <button type="submit" name="BtnLogin" class="btn btn-primary">
              Login Now!
            </button>
            </center>
          </form>
      </div>
    </div>
  </main>
</div>
  <script src="bootstrap-5.2/js/bootstrap.bundle.min.js"></script>
</body>
</html>

Step 2: Database Connection

Database connection with web application.

<?php
//Dovelop Connection Between Databse and Our-Project

$ServerName = "localhost";
$UserName   = "root";
$Password   = "";
$Database   = "webengineering";

$DB = mysqli_connect($ServerName,$UserName,$Password,$Database);
?>

Step 3: Form Submission in PHP

Create a login.php file to handle the form submission, validate the input, and verify the credentials.

<?php
if(isset($_POST['BtnLogin']))
{
  $Query = "SELECT * FROM signup 
            WHERE email = '".$_POST['TxtEmail']."' 
            AND password = '".$_POST['TxtPassword']."'  ";

  $Result = $DB->query($Query);

  if(mysqli_num_rows($Result) > 0) 
  {
    session_start();
    session_regenerate_id();
    $member = mysqli_fetch_assoc($Result);
    
    $_SESSION['Customer_ID'] = $member['id'];
    
    session_write_close();
    
    header("location:index.php?msg=successful"); 
  }
  else
  {
    header("location:login.php?msg=error"); 
  }
}
?>

Lecture 06

Login functionality in PHP

Step 1: Create the HTML Form

Step 2: Database Connection

Step 3: Form Submission in PHP

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