Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it. ' in D:\xampp\htdocs\app_post_office_info\dbconfig.php:4 Stack trace: #0 D:\xampp\htdocs\app_post_office_info\dbconfig.php(4): PDO->__construct('mysql:host=loca...', 'root', '12345') #1 D:\xampp\htdocs\app_post_office_info\index.php(2): include_once('D:\\xampp\\htdocs...') #2 {main} thrown in D:\xampp\htdocs\app_post_office_info\dbconfig.php on line 4