Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'root'@'localhost' (using password: NO) in /home/creativeindia/public_html/check_card.php:11 Stack trace: #0 /home/creativeindia/public_html/check_card.php(11): mysqli->__construct('localhost', 'root', '', 'my_php_db') #1 {main} thrown in /home/creativeindia/public_html/check_card.php on line 11