Home Database Mysql Tutorial MySQL 关于时区的问题

MySQL 关于时区的问题

Jun 07, 2016 pm 04:24 PM
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网站服务器在美国,发布了一篇文章,时间戳为 1320115246,通过PHP修正后,可以显示成正常的时间,但是归类的时候去归到 10 月份的文章去了。在服务器端运行 SQL,发现该文章的发布时间是 2011-10-31 20:40:46,就是采用了服务器当地的时区了,而文章实际上

网站服务器在美国,发布了一篇文章,时间戳为 1320115246,通过PHP修正后,可以显示成正常的时间,但是归类的时候去归到 10 月份的文章去了。在服务器端运行 SQL,发现该文章的发布时间是 2011-10-31 20:40:46,就是采用了服务器当地的时区了,而文章实际上是 2011-11-01 10:40:46 发布的。

归类的时候没法用PHP修正,那么就用 SQL 修正吧。很简单,在归类 SQL 语句前先执行这么一句 SQL 就可以设置成东八区了:

mysql_query("SET time_zone = '+8:00' ");
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1. 查看MySQL时区

连接MySQL,执行以下sql语句:

mysql> show variables like '%time_zone%';
+------------------+--------+
| Variable_name    | Value  |
+------------------+--------+
| system_time_zone |        |
| time_zone        | SYSTEM |
+------------------+--------+
2 rows in set
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2. 修改my.cnf

在 [mysqld] 之下加上 default-time-zone = timezone 修改时区。

如修改成+8区: default-time-zone = '+8:00',修改完成后重启一下MySQL就OK了~

注意: 配置项要在[mysqld] 下加 ,否则会出现 unknown variable 'default-time-zone=+8:00'

也可以通过命令 set time_zone = timezone,比如北京时间(GMT+0800) set time_zone = '+8:00' ;

这个和php的时区设置又有点差别,比如北京时间在php中是 date_default_timezone_set('Etc/GMT-8');

美国pst时间(GMT-08:00) set time_zone = '-8:00';

上面介绍的两种修改方式,第一种是临时改的,如果你没办法修改服务器的配置文件,就按第一种来。

最好就是直接改配置文件。先去找到mysql的配置文件my.cnf,一般在/etc/my.cnf下面,可以cd /etc 然后find my.cnf找找,看能不能找到。找到之后就修改它,用VI打开:vi /etc/my.cnf,打开之后查找[mysqld],在VI输入“/”然后输入[mysqld],就定位到[mysqld]所在的位置,在它的下面加上default-time-zone = '+8:00' 这一行,然后保存退出,重新启动MYSQL,使时区生效。这个时候再去MYSQL下查看刚才的那两条命令,就会发现时区都设置正确了。

这样时区问题就解决了。

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