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- <?php
- /* Database credentials. I am running MySQL
- server with default setting (user 'root' with 'root' password) */
- define('DB_SERVER', 'localhost');
- define('DB_USERNAME', 'root');
- define('DB_PASSWORD', 'root');
- define('DB_NAME', 'LoginData');
- /* Attempt to connect to MySQL database */
- $mysqli = new mysqli(DB_SERVER, DB_USERNAME, DB_PASSWORD, DB_NAME);
- // Check connection
- if($mysqli === false){
- die("ERROR: Could not connect. " . $mysqli->connect_error);
- }
- ?>
- <?php
- // Include config file
- require_once 'config.php';
- // Define variables and initialize with empty values
- $username = $password = $confirm_password = "";
- $username_err = $password_err = $confirm_password_err = "";
- // Processing form data when form is submitted
- if($_SERVER["REQUEST_METHOD"] == "POST"){
- // Validate username
- if(empty(trim($_POST["username"]))){
- $username_err = "Please enter a username.";
- } else{
- // Prepare a select statement
- $sql = "SELECT id FROM users WHERE username = ?";
- if($stmt = $mysqli->prepare($sql)){
- // Bind variables to the prepared statement as parameters
- $stmt->bind_param("s", $param_username);
- // Set parameters
- $param_username = trim($_POST["username"]);
- // Attempt to execute the prepared statement
- if($stmt->execute()){
- // store result
- $stmt->store_result();
- if($stmt->num_rows == 1){
- $username_err = "This username is already taken.";
- } else{
- $username = trim($_POST["username"]);
- }
- } else{
- echo "Oops! Something went wrong. Please try again later.";
- }
- }
- // Close statement
- $stmt->close();
- }
- // Validate password
- if(empty(trim($_POST['password']))){
- $password_err = "Please enter a password.";
- } elseif(strlen(trim($_POST['password'])) < 6){
- $password_err = "Password must have atleast 6 characters.";
- } else{
- $password = trim($_POST['password']);
- }
- // Validate confirm password
- if(empty(trim($_POST["confirm_password"]))){
- $confirm_password_err = 'Please confirm password.';
- } else{
- $confirm_password = trim($_POST['confirm_password']);
- if($password != $confirm_password){
- $confirm_password_err = 'Password did not match.';
- }
- }
- // Check input errors before inserting in database
- if(empty($username_err) && empty($password_err) && empty($confirm_password_err)){
- // Prepare an insert statement
- $sql = "INSERT INTO users (username, password) VALUES (?, ?)";
- if($stmt = $mysqli->prepare($sql)){
- // Bind variables to the prepared statement as parameters
- $stmt->bind_param("ss", $param_username, $param_password);
- // Set parameters
- $param_username = $username;
- $param_password = password_hash($password, PASSWORD_DEFAULT); // Creates a password hash
- // Attempt to execute the prepared statement
- if($stmt->execute()){
- // Redirect to login page
- header("location: login.php");
- } else{
- echo "Something went wrong. Please try again later.";
- }
- }
- // Close statement
- $stmt->close();
- }
- // Close connection
- $mysqli->close();
- }
- ?>
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <title>Sign Up</title>
- <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
- <style type="text/css">
- body{ font: 14px sans-serif; }
- .wrapper{ width: 350px; padding: 20px; }
- </style>
- </head>
- <body>
- <div class="wrapper">
- <h2>Sign Up</h2>
- <p>Please fill this form to create an account.</p>
- <form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
- <div class="form-group <?php echo (!empty($username_err)) ? 'has-error' : ''; ?>">
- <label>Username</label>
- <input type="text" name="username"class="form-control" value="<?php echo $username; ?>">
- <span class="help-block"><?php echo $username_err; ?></span>
- </div>
- <div class="form-group <?php echo (!empty($password_err)) ? 'has-error' : ''; ?>">
- <label>Password</label>
- <input type="password" name="password" class="form-control" value="<?php echo $password; ?>">
- <span class="help-block"><?php echo $password_err; ?></span>
- </div>
- <div class="form-group <?php echo (!empty($confirm_password_err)) ? 'has-error' : ''; ?>">
- <label>Confirm Password</label>
- <input type="password" name="confirm_password" class="form-control" value="<?php echo $confirm_password; ?>">
- <span class="help-block"><?php echo $confirm_password_err; ?></span>
- </div>
- <div class="form-group">
- <input type="submit" class="btn btn-primary" value="Submit">
- <input type="reset" class="btn btn-default" value="Reset">
- </div>
- <p>Already have an account? <a href="login.php">Login here</a>.</p>
- </form>
- </div>
- </body>
- </html>
- <?php
- // Include config file
- require_once 'config.php';
- // Define variables and initialize with empty values
- $username = $password = "";
- $username_err = $password_err = "";
- // Processing form data when form is submitted
- if($_SERVER["REQUEST_METHOD"] == "POST"){
- // Check if username is empty
- if(empty(trim($_POST["username"]))){
- $username_err = 'Please enter username.';
- } else{
- $username = trim($_POST["username"]);
- }
- // 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($username_err) && empty($password_err)){
- // Prepare a select statement
- $sql = "SELECT username, password FROM users WHERE username = ?";
- if($stmt = $mysqli->prepare($sql)){
- // Bind variables to the prepared statement as parameters
- $stmt->bind_param("s", $param_username);
- // Set parameters
- $param_username = $username;
- // Attempt to execute the prepared statement
- if($stmt->execute()){
- // Store result
- $stmt->store_result();
- // Check if username exists, if yes then verify password
- if($stmt->num_rows == 1){
- // Bind result variables
- $stmt->bind_result($username, $hashed_password);
- if($stmt->fetch()){
- if(password_verify($password, $hashed_password)){
- /* Password is correct, so start a new session and
- save the username to the session */
- session_start();
- $_SESSION['username'] = $username;
- header("location: welcome.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
- $username_err = 'No account found with that username.';
- }
- } else{
- echo "Oops! Something went wrong. Please try again later.";
- }
- }
- // Close statement
- $stmt->close();
- }
- // Close connection
- $mysqli->close();
- }
- ?>
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <title>Login</title>
- <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
- <style type="text/css">
- body{ font: 14px sans-serif; }
- .wrapper{ width: 350px; padding: 20px; }
- </style>
- </head>
- <body>
- <div class="wrapper">
- <h2>Login</h2>
- <p>Please fill in your credentials to login.</p>
- <form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
- <div class="form-group <?php echo (!empty($username_err)) ? 'has-error' : ''; ?>">
- <label>Username</label>
- <input type="text" name="username"class="form-control" value="<?php echo $username; ?>">
- <span class="help-block"><?php echo $username_err; ?></span>
- </div>
- <div class="form-group <?php echo (!empty($password_err)) ? 'has-error' : ''; ?>">
- <label>Password</label>
- <input type="password" name="password" class="form-control">
- <span class="help-block"><?php echo $password_err; ?></span>
- </div>
- <div class="form-group">
- <input type="submit" class="btn btn-primary" value="Login">
- </div>
- <p>Don't have an account? <a href="register.php">Sign up now</a>.</p>
- </form>
- </div>
- </body>
- </html>
- <?php
- // Initialize the session
- session_start();
- // If session variable is not set it will redirect to login page
- if(!isset($_SESSION['username']) || empty($_SESSION['username'])){
- header("location: login.php");
- exit;
- }
- ?>
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <title>Welcome</title>
- <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
- <style type="text/css">
- body{ font: 14px sans-serif; text-align: center; }
- </style>
- </head>
- <body>
- <div class="page-header">
- <h1>Hi, <b><?php echo htmlspecialchars($_SESSION['username']); ?></b>. Welcome to our site.</h1>
- </div>
- <p><a href="logout.php" class="btn btn-danger">Sign Out of Your Account</a></p>
- </body>
- </html>
- <?php
- // Initialize the session
- session_start();
- // Unset all of the session variables
- $_SESSION = array();
- // Destroy the session.
- session_destroy();
- // Redirect to login page
- header("location: login.php");
- exit;
- ?>
- <IfModule php7_module>
- AddHandler application/x-httpd-php .php
- AddType application/x-httpd-php .php .html
- PHPIniDir "C:PHP"
- </IfModule>
- ; Directory in which the loadable extensions (modules) reside.
- ; http://php.net/extension-dir
- ; extension_dir = "./"
- ; On windows:
- extension_dir = "ext"
- ;extension=php_bz2.dll
- ;extension=php_curl.dll
- ;extension=php_fileinfo.dll
- ;extension=php_ftp.dll
- ;extension=php_gd2.dll
- ;extension=php_gettext.dll
- ;extension=php_gmp.dll
- ;extension=php_intl.dll
- ;extension=php_imap.dll
- ;extension=php_interbase.dll
- ;extension=php_ldap.dll
- ;extension=php_mbstring.dll
- ;extension=php_exif.dll ; Must be after mbstring as it depends on it
- extension=C:/PHP/ext/php_mysqli.dll
- ;extension=php_oci8_12c.dll ; Use with Oracle Database 12c Instant Client
- ;extension=php_odbc.dll
- ;extension=php_openssl.dll
- ;extension=php_pdo_firebird.dll
- extension=C:/PHP/ext/php_pdo_mysql.dll
- ;extension=php_pdo_oci.dll
- ;extension=php_pdo_odbc.dll
- ;extension=php_pdo_pgsql.dll
- ;extension=php_pdo_sqlite.dll
- ;extension=php_pgsql.dll
- ;extension=php_shmop.dll
- Server API: Apache 2.0 Handler
- Virtual Directory Support: enabled
- Configuration File (php.ini) Path: C:Windows
- Loaded Configuration File: C:PHPphp.ini
- MysqlI Support: enabled
- Client API library version: mysqlnd 5.0.12-dev - 20150407 - $Id: 38fea24f2847fa7519001be390c98ae0acafe387 $
- PDO support: enabled
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