Warning: mysqli_connect(): (HY000/2002): 由于目标计算机积极拒绝，无法连接。 in D:\wwwroot\gfyx.top\t11\conn\conn.php on line 5

Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, bool given in D:\wwwroot\gfyx.top\t11\conn\conn.php:6 Stack trace: #0 D:\wwwroot\gfyx.top\t11\conn\conn.php(6): mysqli_query(false, 'set names utf8') #1 D:\wwwroot\gfyx.top\t11\buy.php(2): require('D:\\wwwroot\\gfyx...') #2 {main} thrown in D:\wwwroot\gfyx.top\t11\conn\conn.php on line 6