Fatal error: Uncaught ArgumentCountError: mysqli_query() expects at least 2 arguments, 1 given in /home/research/public_html/include/config.php:13 Stack trace: #0 /home/research/public_html/include/config.php(13): mysqli_query('SET character_s...') #1 /home/research/public_html/advance_search.php(4): include('/home/research/...') #2 {main} thrown in /home/research/public_html/include/config.php on line 13