Notice: session_start(): A session had already been started - ignoring in /var/www/html/eng/tqf/menu.php on line 2

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /var/www/html/eng/tqf/class/opdb.php:7 Stack trace: #0 /var/www/html/eng/tqf/menu.php(4): opdb->opdb() #1 /var/www/html/eng/tqf/index.php(13): include('/var/www/html/e...') #2 {main} thrown in /var/www/html/eng/tqf/class/opdb.php on line 7