Warning: mysqli_connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /usr/home/hyu2804790001/htdocs/itowntech/component/dm-config/mysql.php on line 19

Warning: mysqli_connect(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: Name or service not known in /usr/home/hyu2804790001/htdocs/itowntech/component/dm-config/mysql.php on line 19
对不起，数据库名，用户或密码不对，请修改mysql.php，具体看官方教程。sorry,database name maybe is wrong:
pls visit later
Warning: mysqli_query() expects parameter 1 to be mysqli, boolean given in /usr/home/hyu2804790001/htdocs/itowntech/component/dm-config/mysql.php on line 34

Warning: mysqli_query() expects parameter 1 to be mysqli, boolean given in /usr/home/hyu2804790001/htdocs/itowntech/component/dm-config/mysql.php on line 37

Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, null given in /usr/home/hyu2804790001/htdocs/itowntech/component/dm-config/mysql.php on line 45

Warning: mysqli_free_result() expects parameter 1 to be mysqli_result, null given in /usr/home/hyu2804790001/htdocs/itowntech/component/dm-config/mysql.php on line 79
not exist user...