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Monday, December 19, 2022

Login and Register using PHP Mysql password_hash password_verify

Login and Register using PHP Mysql password_hash password_verify

Bootstrap 5
https://getbootstrap.com/docs/5.0/getting-started/introduction/
https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css

CREATE TABLE `tblusers` (
  `id` int(11) NOT NULL,
  `name` varchar(100) NOT NULL,
  `email` varchar(100) NOT NULL,
  `password` varchar(100) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

login.php
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//login.php
<?php
session_start();
if (isset($_SESSION["user"])) {
   header("Location: index.php");
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Login and Register using PHP Mysql password_hash password_verify</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css">
</head>
<body>
<section class="vh-100">
  <div class="container py-5 h-100">
    <p><h1>Login and Register using PHP Mysql password_hash password_verify</h1></p>
    <div class="row d-flex align-items-center justify-content-center h-100">
      <div class="col-md-8 col-lg-7 col-xl-6">
        <img src="login.png"
          class="img-fluid" alt="Phone image">
      </div>
      <div class="col-md-7 col-lg-5 col-xl-5 offset-xl-1">
        <?php
        if (isset($_POST["login"])) {
           $email = $_POST["email"];
           $password = $_POST["password"];
            require_once "database.php";
            $sql = "SELECT * FROM tblusers WHERE email = '$email'";
            $result = mysqli_query($conn, $sql);
            $user = mysqli_fetch_array($result, MYSQLI_ASSOC);
            if ($user) {
                if (password_verify($password, $user["password"])) { //https://www.php.net/manual/en/function.password-verify.php
                    session_start();
                    $_SESSION["user"] = "yes";
                    header("Location: index.php");
                    die();
                }else{
                    echo "<div class='alert alert-danger'>Password does not match</div>";
                }
            }else{
                echo "<div class='alert alert-danger'>Email does not match</div>";
            }
        }
        ?>
        <form action="login.php" method="post">
          <div class="form-outline mb-4">
            <input type="email" id="email" name="email" class="form-control form-control-lg" />
            <label class="form-label" for="email">Email address</label>
          </div>
          <div class="form-outline mb-4">
            <input type="password" name="password" id="password" class="form-control form-control-lg" />
            <label class="form-label" for="password">Password</label>
          </div>
          <div class="d-flex justify-content-around align-items-center mb-4">
            <div class="form-check">
              <input class="form-check-input" type="checkbox" value="" id="form1Example3" checked />
              <label class="form-check-label" for="form1Example3"> Remember me </label>
            </div>
            <a href="#!">Forgot password?</a>
          </div>
          <input type="submit" value="Sign in" name="login" class="btn btn-primary btn-lg btn-block">
        <p>Not registered yet <a href="registration.php">Register Here</a></p>
          <div class="divider d-flex align-items-center my-4">
            <p class="text-center fw-bold mx-3 mb-0 text-muted">OR</p>
          </div>
          <a class="btn btn-primary btn-lg btn-block" style="background-color: #3b5998" href="#!"
            role="button">
            <i class="fab fa-facebook-f me-2"></i>Continue with Facebook
          </a>
          <a class="btn btn-primary btn-lg btn-block" style="background-color: #55acee" href="#!"
            role="button">
            <i class="fab fa-twitter me-2"></i>Continue with Twitter</a>
        </form>
      </div>
    </div>
  </div>
</section>
<style>
.divider:after,
.divider:before {
content: "";
flex: 1;
height: 1px;
background: #eee;
}
</style>
</body>
</html>
database.php
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//database.php
<?php
$hostName = "localhost";
$dbUser = "root";
$dbPassword = "";
$dbName = "projectdb";
$conn = mysqli_connect($hostName, $dbUser, $dbPassword, $dbName);
if (!$conn) {
    die("Something went wrong;");
}
 
?>
registration.php
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//registration.php
<?php
session_start();
if (isset($_SESSION["user"])) {
   header("Location: index.php");
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Login and Register using PHP Mysql password_hash password_verify</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css">
</head>
<body>
<section class="vh-100">
  <div class="container py-5 h-100">
    <p><h1>Login and Register using PHP Mysql password_hash password_verify</h1></p>
    <div class="row d-flex align-items-center justify-content-center h-100">
      <div class="col-md-8 col-lg-7 col-xl-6">
        <img src="signup.svg"
          class="img-fluid" alt="">
      </div>
      <div class="col-md-7 col-lg-5 col-xl-5 offset-xl-1">
        <?php
        if (isset($_POST["submit"])) {
           $name = $_POST["name"];
           $email = $_POST["email"];
           $password = $_POST["password"];
           $passwordRepeat = $_POST["repeat_password"];
            
           $passwordHash = password_hash($password, PASSWORD_DEFAULT);
 
           $errors = array();
            
           if (empty($name) OR empty($email) OR empty($password) OR empty($passwordRepeat)) {
            array_push($errors,"All fields are required");
           }
           if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
            array_push($errors, "Email is not valid");
           }
           if (strlen($password)<8) {
            array_push($errors,"Password must be at least 8 charactes long");
           }
           if ($password!==$passwordRepeat) {
            array_push($errors,"Password does not match");
           }
           require_once "database.php";
           $sql = "SELECT * FROM tblusers WHERE email = '$email'";
           $result = mysqli_query($conn, $sql);
           $rowCount = mysqli_num_rows($result);
           if ($rowCount>0) {
            array_push($errors,"Email already exists!");
           }
           if (count($errors)>0) {
            foreach ($errors as  $error) {
                echo "<div class='alert alert-danger'>$error</div>";
            }
           }else{
             
            $sql = "INSERT INTO tblusers (name, email, password) VALUES ( ?, ?, ? )";
            $stmt = mysqli_stmt_init($conn);
            $prepareStmt = mysqli_stmt_prepare($stmt,$sql);
            if ($prepareStmt) {
                mysqli_stmt_bind_param($stmt,"sss",$name, $email, $passwordHash);
                mysqli_stmt_execute($stmt);
                echo "<div class='alert alert-success'>You are registered successfully.</div>";
            }else{
                die("Something went wrong");
            }
           }
           
 
        }
        ?>
        <form action="registration.php" method="post">
          <div class="form-outline mb-4">
            <input type="text" id="name" name="name" class="form-control form-control-lg" />
            <label class="form-label" for="name">Full Name</label>
          </div>         
          <div class="form-outline mb-4">
            <input type="email" id="email" name="email" class="form-control form-control-lg" />
            <label class="form-label" for="email">Email address</label>
          </div>
          <div class="form-outline mb-4">
            <input type="password" name="password" id="password" class="form-control form-control-lg" />
            <label class="form-label" for="password">Password</label>
          </div>
          <div class="form-outline mb-4">
            <input type="password" name="repeat_password" id="repeat_password" class="form-control form-control-lg" />
            <label class="form-label" for="repeat_password">Repeat Password</label>
          </div>
          <div class="d-flex justify-content-around align-items-center mb-4">
            <div class="form-check">
              <input class="form-check-input" type="checkbox" value="" id="form1Example3" checked />
              <label class="form-check-label" for="form1Example3"> Remember me </label>
            </div>
            <a href="#!">Forgot password?</a>
          </div>
          <input type="submit" class="btn btn-primary btn-lg btn-block" value="Register" name="submit">
          <p>Already Registered <a href="login.php">Login Here</a></p>
        </form>
      </div>
    </div>
  </div>
</section>
<style>
.divider:after,
.divider:before {
content: "";
flex: 1;
height: 1px;
background: #eee;
}
</style>
</body>
</html>
index.php
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//index.php
<?php
session_start();
if (!isset($_SESSION["user"])) {
   header("Location: login.php");
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>User Dashboard</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css">
</head>
<body>
    <div class="container">
        <h1>Welcome to Dashboard</h1>
        <a href="logout.php" class="btn btn-warning">Logout</a>
    </div>
</body>
</html>
logout.php
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//logout.php
<?php
session_start();
session_destroy();
header("Location: login.php");
?>
Posted by ednalan at 10:20 PM . Under .

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