/
login.php
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/
login.php
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<?php
// Initialize the session
session_start();
// Check if the user is already logged in, if yes then redirect him to welcome page
if(isset($_SESSION["loggedin"]) && $_SESSION["loggedin"] === true){
header("location: homepage.php");
exit;
}
// Include config file
require_once "database.php";
// Define variables and initialize with empty values
$email = $password = "";
$email_err = $password_err = "";
// Processing form data when form is submitted
if($_SERVER["REQUEST_METHOD"] == "POST"){
// Check if username is empty
if(empty(trim($_POST["email"]))){
$email_err = "Please enter email.";
} else{
$email = trim($_POST["email"]);
}
// Check if password is empty
if(empty(trim($_POST["password"]))){
$password_err = "Please enter your password.";
} else{
$password = trim($_POST["password"]);
}
// Validate credentials
if(empty($email_err) && empty($password_err)){
// Prepare a select statement
$sql = "SELECT user_id, email, password FROM user WHERE email = ?";
if($stmt = $connection->prepare($sql)){
// Bind variables to the prepared statement as parameters
$stmt->bind_param("s", $param_email);
// Set parameters
$param_email = $email;
// Attempt to execute the prepared statement
if($stmt->execute()){
// Store result
$stmt->store_result();
// Check if exists, if yes then verify password
if($stmt->num_rows == 1){
// Bind result variables
$stmt->bind_result($id, $email, $verifyPassword);
if($stmt->fetch()){
if($password === $verifyPassword){
// Password is correct, so start a new session
session_start();
// Store data in session variables
$_SESSION["loggedin"] = true;
$_SESSION["id"] = $id;
$_SESSION["email"] = $email;
// Redirect user to welcome page
header("location: homepage.php");
} else{
// Display an error message if password is not valid
$password_err = "The password you entered was not valid.";
}
}
} else{
// Display an error message if username doesn't exist
$email_err = "No account found with that email.";
}
} else{
echo "Oops! Something went wrong. Please try again later.";
}
// Close statement
$stmt->close();
}
}
// Close connection
$connection->close();
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<link rel="icon" href="../../favicon.ico">
<link rel="canonical" href="https://getbootstrap.com/docs/3.4/examples/jumbotron/">
<title>Dating Sites</title>
<!-- Bootstrap core CSS -->
<link href="css/bootstrap.css" rel="stylesheet">
<link href="css/style.css" rel="stylesheet">
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<link href="css/ie10-viewport-bug-workaround.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="css/jumbotron.css" rel="stylesheet">
<!-- Just for debugging purposes. Don't actually copy these 2 lines! -->
<!--[if lt IE 9]><script src="../../assets/js/ie8-responsive-file-warning.js"></script><![endif]-->
<script src="js/ie-emulation-modes-warning.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<?php
require_once('header.php');
?>
<div class="wrapper">
<h2>Login</h2>
<p>Please fill in your credentials to login.</p>
<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
<div class="col-md-6 form-group <?php echo (!empty($email_err)) ? 'has-error' : ''; ?>">
<label>Email</label>
<input type="text" name="email" class="form-control" value="<?php echo $email; ?>">
<span class="help-block"><?php echo $email_err; ?></span>
</div>
<div class="col-md-6 form-group <?php echo (!empty($password_err)) ? 'has-error' : ''; ?>">
<label>Password</label>
<input type="password" name="password" class="form-control">
<span class="help-block"><?php echo $password_err; ?></span>
</div>
<div class="col-md-6 form-group">
<input type="submit" class="btn btn-primary" value="Login">
</div>
<div class="sign-up-color"> <p>Don't have an account? <a href="register.php">Sign up now</a>.</p></div>
<div class="sign-up-color"> <p>Want a tour <a href="homepage.php">Click Here</a> </p></div>
</form>
</div>
<?php
require_once('footer.php');
?>
</body>
</html>