Fatal error: Uncaught Error: Call to undefined function mysql_connect() in D:\xampp\htdocs\tracking\security\!\includes\db.php:8 Stack trace: #0 D:\xampp\htdocs\tracking\security\!\includes\db.php(33): db->connect() #1 D:\xampp\htdocs\tracking\security\!\includes\sessions.php(13): db->query('SELECT 1 FROM i...') #2 D:\xampp\htdocs\tracking\security\!\includes\site.php(13): SessionHandler1->__construct() #3 D:\xampp\htdocs\tracking\security\login.php(2): include('D:\\xampp\\htdocs...') #4 {main} thrown in D:\xampp\htdocs\tracking\security\!\includes\db.php on line 8