Warning: Undefined variable $mysqli in /home/stbclass/Assignments/Week8Assignments/Week8Assignment/inc/footer.php on line 16

Fatal error: Uncaught Error: Call to a member function close() on null in /home/stbclass/Assignments/Week8Assignments/Week8Assignment/inc/footer.php:16 Stack trace: #0 {main} thrown in /home/stbclass/Assignments/Week8Assignments/Week8Assignment/inc/footer.php on line 16