Fatal error: Uncaught PDOException: SQLSTATE[HY000] [2002] Connection refused in /www/wwwroot/xxx/fanshutou/zb_fan/common/db.php:9 Stack trace: #0 /www/wwwroot/xxx/fanshutou/zb_fan/common/db.php(9): PDO->__construct('mysql:host=127....', '', '') #1 /www/wwwroot/xxx/fanshutou/3.php(5): require_once('/www/wwwroot/xx...') #2 {main} thrown in /www/wwwroot/xxx/fanshutou/zb_fan/common/db.php on line 9