Warning: mysqli_connect(): (HY000/2002): 대상 컴퓨터에서 연결을 거부했으므로 연결하지 못했습니다 in C:\homepage\board\dbconn.php on line 6

Fatal error: Uncaught TypeError: mysqli_set_charset(): Argument #1 ($mysql) must be of type mysqli, bool given in C:\homepage\board\dbconn.php:7 Stack trace: #0 C:\homepage\board\dbconn.php(7): mysqli_set_charset(false, 'utf8') #1 C:\homepage\board\board_view.php(2): include('C:\\homepage\\boa...') #2 {main} thrown in C:\homepage\board\dbconn.php on line 7