Connection to DB OK!

Fatal error: Uncaught Error: Call to a member function fetch_assoc() on bool in /home2/mathtpallas/public_html/student/kontra/ak_47_askisi19.php:31 Stack trace: #0 {main} thrown in /home2/mathtpallas/public_html/student/kontra/ak_47_askisi19.php on line 31