Fatal error: Uncaught PDOException: PDO::__construct(): php_network_getaddresses: getaddrinfo for rm-bp1p663816j9vvkgvvo.mysql.rds.aliyuncs.com failed: Name or service not known in /www/wwwroot/mnbt.3188076/admin/app/Core/Database.php:35 Stack trace: #0 /www/wwwroot/mnbt.3188076/admin/app/Core/Database.php(35): PDO->__construct() #1 /www/wwwroot/mnbt.3188076/admin/app/Modules/Admin/AdminAuthService.php(22): App\Core\Database::connection() #2 /www/wwwroot/mnbt.3188076/admin/index.php(75): App\Modules\Admin\AdminAuthService->__construct() #3 {main} Next PDOException: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo for rm-bp1p663816j9vvkgvvo.mysql.rds.aliyuncs.com failed: Name or service not known in /www/wwwroot/mnbt.3188076/admin/app/Core/Database.php:35 Stack trace: #0 /www/wwwroot/mnbt.3188076/admin/app/Core/Database.php(35): PDO->__construct() #1 /www/wwwroot/mnbt.3188076/admin/app/Modules/Admin/AdminAuthService.php(22): App\Core\Database::connection() #2 /www/wwwroot/mnbt.3188076/admin/index.php(75): App\Modules\Admin\AdminAuthService->__construct() #3 {main} Next RuntimeException: Database connection failed: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo for rm-bp1p663816j9vvkgvvo.mysql.rds.aliyuncs.com failed: Name or service not known in /www/wwwroot/mnbt.3188076/admin/app/Core/Database.php:40 Stack trace: #0 /www/wwwroot/mnbt.3188076/admin/app/Modules/Admin/AdminAuthService.php(22): App\Core\Database::connection() #1 /www/wwwroot/mnbt.3188076/admin/index.php(75): App\Modules\Admin\AdminAuthService->__construct() #2 {main} thrown in /www/wwwroot/mnbt.3188076/admin/app/Core/Database.php on line 40