Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /home/viktorov/public_html/invoice/inc/db.php:6 Stack trace: #0 /home/viktorov/public_html/invoice/inc/functions.php(2): include() #1 /home/viktorov/public_html/invoice/index.php(2): include('/home/viktorov/...') #2 {main} thrown in /home/viktorov/public_html/invoice/inc/db.php on line 6