Fatal error: Uncaught Error: Call to undefined function mysqli_query() in /var/www/html/arend-jan.com/projects/p.php:33 Stack trace: #0 /var/www/html/arend-jan.com/projects/website/index.php(5): require_once() #1 {main} thrown in /var/www/html/arend-jan.com/projects/p.php on line 33