Fatal error: Uncaught Error: Call to undefined function mysql_connect() in D:\erp\htdocs\product\class\db.class.php:62 Stack trace: #0 D:\erp\htdocs\product\core.php(68): db->connect() #1 D:\erp\htdocs\product\index.php(40): include('D:\\erp\\htdocs\\p...') #2 {main} thrown in D:\erp\htdocs\product\class\db.class.php on line 62