PHP用PDO请求mysql报错：Server sent charset unknown to the client. Please, report to the developers
修改my.cnf的内容为如下
$ vim my.cnf 下面是内容
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
collation-server = utf8_unicode_ci
character-set-server = utf8
default_authentication_plugin = mysql_native_passwor