文字コードをすべてutf8に設定
my.iniの設定変更
[client]
default-character-set = utf8
[mysqld]
skip-character-set-client-handshake
default-character-set = utf8
character-set-server = utf8
collation-server = utf8_general_ci
init-connect = SET NAMES utf8
[mysqldump]
default-character-set = utf8
[mysql]
default-character-set = utf8
