Notice: session_start(): A session had already been started - ignoring in C:\xampp\htdocs\login2.php on line 1

Notice: Undefined variable: security in C:\xampp\htdocs\login2.php on line 1

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in C:\xampp\htdocs\config\connection.php:14 Stack trace: #0 C:\xampp\htdocs\login2.php(1): include_once() #1 C:\xampp\htdocs\rightpanel.php(1): include_once('C:\\xampp\\htdocs...') #2 C:\xampp\htdocs\create_account.php(95): include_once('C:\\xampp\\htdocs...') #3 {main} thrown in C:\xampp\htdocs\config\connection.php on line 14