Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /var/www/html/contest/config.php:14 Stack trace: #0 /var/www/html/contest/auth.php(3): include() #1 /var/www/html/contest/index.php(11): include('...') #2 {main} thrown in /var/www/html/contest/config.php on line 14