Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'root'@'localhost' (using password: YES) in D:\xampp\htdocs\_test\test\createCSV.php:8 Stack trace: #0 D:\xampp\htdocs\_test\test\createCSV.php(8): mysqli->__construct('localhost', 'root', Object(SensitiveParameterValue), 'inno-gas-app') #1 {main} thrown in D:\xampp\htdocs\_test\test\createCSV.php on line 8