Fatal error: Uncaught Error: Call to undefined function mysql_connect() in C:\xampp\htdocs\PBN\dbcontroller.php:16 Stack trace: #0 C:\xampp\htdocs\PBN\dbcontroller.php(9): DBController->connectDB() #1 C:\xampp\htdocs\PBN\activate.php(3): DBController->__construct() #2 {main} thrown in C:\xampp\htdocs\PBN\dbcontroller.php on line 16