Fatal error: Uncaught PDOException: SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it. in C:\xampp\htdocs\db_connection.php:13 Stack trace: #0 C:\xampp\htdocs\db_connection.php(13): PDO->__construct('mysql:host=127....', 'root', '', Array) #1 C:\xampp\htdocs\index.php(4): require_once('C:\\xampp\\htdocs...') #2 {main} thrown in C:\xampp\htdocs\db_connection.php on line 13