Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'root'@'localhost' (using password: NO) in /home/qsxgnkqd/public_html/db.php:7 Stack trace: #0 /home/qsxgnkqd/public_html/db.php(7): mysqli->__construct('localhost', 'root', '', 'userdb') #1 /home/qsxgnkqd/public_html/register.php(2): include('/home/qsxgnkqd/...') #2 {main} thrown in /home/qsxgnkqd/public_html/db.php on line 7