Warning: mysqli_connect(): MySQL server has gone away in /www/wwwroot/new.invshop.com/static/jext/php/class/db.class.php on line 21

Warning: mysqli_connect(): Error while reading greeting packet. PID=3003 in /www/wwwroot/new.invshop.com/static/jext/php/class/db.class.php on line 21

Warning: mysqli_connect(): (HY000/2006): MySQL server has gone away in /www/wwwroot/new.invshop.com/static/jext/php/class/db.class.php on line 21
数据库连接失败
错误代码： 2006:MySQL server has gone away