Fatal error: Uncaught ArgumentCountError: mysqli_query() expects at least 2 arguments, 1 given in /home/isasaric/public_html/bibliyografya/ust.php:54 Stack trace: #0 /home/isasaric/public_html/bibliyografya/ust.php(54): mysqli_query() #1 /home/isasaric/public_html/bibliyografya/eser-detay.php(1): include_once('/home/isasaric/...') #2 {main} thrown in /home/isasaric/public_html/bibliyografya/ust.php on line 54