Fatal error: Uncaught mysqli_sql_exception: Access denied for user ''@'localhost' (using password: NO) in /home/mywebfun/public_html/test/mysql_up.php:13 Stack trace: #0 /home/mywebfun/public_html/test/mysql_up.php(13): mysqli_connect('localhost', '', Object(SensitiveParameterValue)) #1 {main} thrown in /home/mywebfun/public_html/test/mysql_up.php on line 13