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the login page does not moving me to the welcome page in php
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Is this code okay? as I do not receive any errors at all.
session.php
<?php
// Start the session
session_start();
// if the user is already logged in then redirect user to welcome page
if (isset($_SESSION["userid"]) && $_SESSION["userid"] === true) {
header("location: welcome.php");
exit;
}
?>
login.php
<?php
require_once "config.php";
require_once "session.php";
$error = '';
if ($_SERVER["REQUEST_METHOD"] === "POST" && isset($_POST['submit'])) {
$email = trim($_POST['email']);
$password = trim($_POST['password']);
// validate if email is empty
if(empty($email)) {
$error .= '<p class="error">Please enter email.</p>';
}
// validate if password is empty
if(empty($password)) {
$error .= '<p class="error">Please enter your password.</p>';
}
if(empty($error)) {
if($query = $db->prepare("SELECT * FROM users WHERE email = ?")) {
$query->bind_param('s', $email);
$query->execute();
$row = $query->fetch();
if ($row) {
if (password_verify($password, $row['password'])) {
$_SESSION["userid"] = $row['id'];
$_SESSION["user"] = $row;
// Redirect the user to welcome page
header("location: welcome.php");
exit;
} else {
$error .= '<p class="error">The password is not valid.';
}
} else {
$error .= '<p class="error">No User exist with that email address.';
}
}
$query->close();
}
// Close connection
mysqli_close($db);
}
?>
<!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</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-12">
<h2>Login</h2>
<p>Please fill in your email and password.</p>
<form action="" method="post">
<div class="form-group">
<label>Email Address</label>
<input type="email" name="email" class="form-control" required />
</div>
<div class="form-group">
<label>Password</label>
<input type="password" name="password" class="form-control" required>
</div>
<div class="form-group">
<input type="submit" name="submit" class="btn btn-primary" value="Submit">
</div>
<p>Don't have an account? <a href="register.php">Register here</a>.</p>
</form>
</div>
</div>
</div>
</body>
</html>
welcome.php
<?php
// start the session
session_start();
// Check if the user is not logged in, then redirect the user to login page
if (!isset($_SESSION["userid"]) || $_SESSION["userid"] !== true) {
header("location: login.php");
exit;
}
?>
<!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>Welcome <?php echo $_SESSION["name"]; ?></title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-12">
<h1>Hello, <strong><?php echo $_SESSION["name"]; ?></strong>. Welcome to demo site.</h1>
</div>
<p>
<a href="logout.php" class="btn btn-secondary btn-lg active" role="button" aria-pressed="true">Log Out</a>
</p>
</div>
</div>
</body>
</html>
welcome.php changed to -
<?php
// start the session
session_start();
// Check if the user is not logged in, then redirect the user to login page
if (empty($_SESSION['user'])) {
header("location: login.php");
exit;
}
?>
session.php changed to =
<?php
// Start the session
session_start();
// if the user is already logged in then redirect user to welcome page
if (empty($_SESSION['user']) === false) {
header("location: welcome.php");
exit;
}
?>
register.php -
<?php
require_once "config.php";
require_once "session.php";
if ($_SERVER["REQUEST_METHOD"] === "POST" && isset($_POST['submit'])) {
$fullname = trim($_POST['name']);
$email = trim($_POST['email']);
$password = trim($_POST['password']);
$confirm_password = trim($_POST['confirm_password']);
$password_hash = password_hash($password, PASSWORD_BCRYPT);
if($query = $db->prepare("SELECT * FROM users WHERE email = ?")) {
$error = '';
$query->bind_param('s', $email);
$query->execute();
$query->store_result();
if ($query->num_rows > 0) {
$error .= '<p class="error">The email address is already registered!</p>';
} else {
if (strlen($password ) < 6) {
$error .= '<p class="error>Password must have atleast 6 characters.</p>';
}
// Validate confirm password
if (empty($confirm_password)) {
$error .= '<p class="error">Please enter confirm password.</p>';
} else {
if (empty($error) && ($password != $confirm_password)) {
$error .= '<p class="error">Password did not match.</p>';
}
}
if (empty($error) ) {
$insertQuery = $db->prepare("INSERT INTO users (name, email, password) VALUES (?, ?, ?);");
$insertQuery->bind_param("sss", $fullname, $email, $password_hash);
$result = $insertQuery->execute();
if ($result) {
$error .= '<p class="success">Your registration was successful!</p>';
} else {
$error .= '<p class="error">Something went wrong!</p>';
}
}
}
}
$query->close();
$insertQuery->close();
// Close DB connection
mysqli_close($db);
}
?>
<!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>Signup</title>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-12">
<h2>Register</h2>
<p>Please fill this form to create an account.</p>
<form action="" method="POST">
<div class="form-group">
<label>Full Name</label>
<input type="text" name="name" class="form-control" required>
</div>
<div class="form-group">
<label>Email Address</label>
<input type="email" name="email" class="form-control" required />
</div>
<div class="form-group">
<label>Password</label>
<input type="password" name="password" class="form-control" required>
</div>
<div class="form-group">
<label>Confirm Password</label>
<input type="password" name="confirm_password" class="form-control" required>
</div>
<div class="form-group">
<input type="submit" name="submit" class="btn btn-primary" value="Submit">
</div>
<p>Already have an account? <a href="login.php">Login Here</a>.</p>
</form>
</div>
</div>
</div>
</body>
</html>
logout.php -
<?php
// Start the session
session_start();
// Destroy the session.
if (session_destroy()) {
// redirect to the login page
header("Location: login.php");
exit;
}
?>
config.php
<?php
define('DBSERVER', 'localhost'); // Database server
define('DBUSERNAME', 'root'); // Database username
define('DBPASSWORD', ''); // Database password
define('DBNAME', 'demo'); // Database name
/* connect to MySQL database */
$db = mysqli_connect(DBSERVER, DBUSERNAME, DBPASSWORD, DBNAME);
// check db connection
if($db === false){
die("Error: connection error. " . mysqli_connect_error());
}
?>
db.sql - that connects to the server verifed it adds to the database using phpmyadmin so the registration is working.
CREATE TABLE `users` (
`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`name` varchar(75) NOT NULL,
`password` varchar(7255) NOT NULL,
`email` varchar(100) NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `email` (`email`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1;
EDIT: added the changes to the session.php + welcome.php + added the whole files of the whole code.
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