Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- <?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
- $sql = "SELECT username, password FROM users WHERE username = :username";
- if($stmt = $pdo->prepare($sql)){
- // Bind variables to the prepared statement as parameters
- $stmt->bindParam(':username', $param_username, PDO::PARAM_STR);
- // Set parameters
- $param_username = trim($_POST["username"]);
- // Attempt to execute the prepared statement
- if($stmt->execute()){
- // Check if username exists, if yes then verify password
- if($stmt->rowCount() == 1){
- if($row = $stmt->fetch()){
- $hashed_password = $row['password'];
- if(password_verify($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: index.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
- $username_err = 'No account found with that username.';
- }
- } else{
- echo "Oops! Something went wrong. Please try again later.";
- }
- }
- // Close statement
- unset($stmt);
- }
- // Close connection
- unset($pdo);
- }
- ?>
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement