Fatal error: Uncaught mysqli_sql_exception: Unknown database 'seal_wiki' in C:\xampp\htdocs\168\wiki\connect_db.php:7 Stack trace: #0 C:\xampp\htdocs\168\wiki\connect_db.php(7): mysqli_connect('143.20.142.26', 'root', Object(SensitiveParameterValue), 'seal_wiki') #1 C:\xampp\htdocs\168\wiki\data_table\item_table.php(1): include('C:\\xampp\\htdocs...') #2 {main} thrown in C:\xampp\htdocs\168\wiki\connect_db.php on line 7