在容器中运行MySQL，导入表中，出现如下错误：ERROR 2006 (HY000): MySQL server has gone away
这个问题由于好几个方面引起，可以修改MySQL的配置文件my.cnf。也可以直接进入MySQL中查看相关的参数，进行更改,在重新导入相关的库或表，相关参数有：mysql> show global variables like '%timeout'...
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function calc(str)
{
/*DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSEVersion 2, December 2004Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>Everyone is permitted to copy and dist...
框架中报错信息如下：[error][yii\db\Exception] PDOException: SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #3 of SELECT list is not in GROUP BY clause and contains nonaggregated column 't...