string(65) "PDO连接错误信息:SQLSTATE[HY000] [2002] Connection refused"
Fatal error: Uncaught Error: Call to a member function prepare() on null in /www/wwwroot/www.mianfeisms.xyz/Common/PdoHelper.php:235 Stack trace: #0 /www/wwwroot/www.mianfeisms.xyz/Common/PdoHelper.php(205): PdoHelper->query('select qu,phone...', '') #1 /www/wwwroot/www.mianfeisms.xyz/sms.php(32): PdoHelper->select('(\nselect * from...', 'qu,phone,update...', '', ' RAND()', ' limit 3') #2 {main} thrown in /www/wwwroot/www.mianfeisms.xyz/Common/PdoHelper.php on line 235