Warning: mysqli_connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /www/wwwroot/www.wlab.cc/db.php on line 19

Warning: mysqli_connect(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: Name or service not known in /www/wwwroot/www.wlab.cc/db.php on line 19
数据库连接失败: php_network_getaddresses: getaddrinfo failed: Name or service not known 连接参数: DB_HOST='DB_HOST', DB_USER='DB_USER', DB_NAME='DB_NAME' 请检查您的数据库配置是否正确，特别是主机名和凭据。