Warning: mysqli_set_charset(): MySQL server has gone away in D:\wwwroot\zzc2\shipsay\class\Db.php on line 51

Warning: mysqli_set_charset(): Error reading result set's header in D:\wwwroot\zzc2\shipsay\class\Db.php on line 51

Warning: mysqli_set_charset(): Error executing query in D:\wwwroot\zzc2\shipsay\class\Db.php on line 51

Fatal error: Uncaught Exception: 设置字符集失败：MySQL server has gone away in D:\wwwroot\zzc2\shipsay\class\Db.php:52 Stack trace: #0 D:\wwwroot\zzc2\shipsay\class\Db.php(21): Db->connect() #1 D:\wwwroot\zzc2\shipsay\class\router.php(50): Db->__construct(Array) #2 D:\wwwroot\zzc2\www\index.php(6): require_once('D:\\wwwroot\\zzc2...') #3 {main} thrown in D:\wwwroot\zzc2\shipsay\class\Db.php on line 52