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查看系統(tǒng)的字符集和排序方式的設(shè)定可以通過下面的兩條命令或mysql> status 。 mysql> SHOW VARIABLES LIKE 'character_set_%'; +--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | latin1 | | character_set_results | latin1 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+ 7 rows in set (0.00 sec) mysql> SHOW VARIABLES LIKE 'collation_%'; +----------------------+-------------------+ | Variable_name | Value | +----------------------+-------------------+ | collation_connection | latin1_swedish_ci | | collation_database | latin1_swedish_ci | | collation_server | latin1_swedish_ci | +----------------------+-------------------+ 3 rows in set (0.00 sec) 上面列出的值就是系統(tǒng)的默認(rèn)值。(很奇怪系統(tǒng)怎么默認(rèn)是latin1的瑞典語排序方式)... 當(dāng)我們按照原來的方式通過PHP存取MySQL數(shù)據(jù)庫時(shí)，就算設(shè)置了表的默認(rèn)字符集為utf8并且通過UTF-8編碼發(fā)送查詢，你會發(fā)現(xiàn)存入數(shù)據(jù)庫的仍然是亂碼。問題就出在這個(gè)connection連接層上。解決方法是在發(fā)送查詢前執(zhí)行一下下面這句： 1. SET NAMES 'utf8'; 它相當(dāng)于下面的三句指令： SET character_set_client = utf8; SET character_set_results = utf8; SET character_set_connection = utf8; 2. 創(chuàng)建數(shù)據(jù)庫 mysql> create database name character set utf8; 3. 創(chuàng)建表 CREATE TABLE `type` ( `id` int(10) unsigned NOT NULL auto_increment, `flag_deleted` enum('Y','N') character set utf8 NOT NULL default 'N', `flag_type` int(5) NOT NULL default '0', `type_name` varchar(50) character set utf8 NOT NULL default '', PRIMARY KEY (`id`) ) DEFAULT CHARSET=utf8; 4. 修改數(shù)據(jù)庫成utf8的. mysql> alter database name character set utf8; 5. 修改表默認(rèn)用utf8. mysql> alter table type character set utf8; 6. 修改字段用utf8 mysql> alter table type modify type_name varchar(50) CHARACTER SET utf8; |
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