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mysql_character_sets [2013/10/07 14:27] (current) |
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| + | ====== MySQL Character Sets ====== | ||
| + | |||
| + | * [[MySQL]] | ||
| + | |||
| + | MySQL, by default, uses LATIN1 encoding. You can verify this by opening up a ''mysql'' shell and | ||
| + | running this statement: | ||
| + | |||
| + | <code> | ||
| + | SHOW VARIABLES WHERE variable_name = 'character_set_client'; | ||
| + | </code> | ||
| + | |||
| + | === MySQL and PHP === | ||
| + | |||
| + | See what encoding PHP is using to connect as: | ||
| + | |||
| + | <code> | ||
| + | $link = mysql_connect('localhost', 'user', 'pass'); | ||
| + | $charset = mysql_client_encoding($link); | ||
| + | </code> | ||
| + | |||
| + | Likewise, you can override the setting and change it. The code must be directly after creating the MySQL connection: | ||
| + | |||
| + | <code> | ||
| + | $link = mysql_connect('localhost', 'user', 'pass'); | ||
| + | $bool = mysql_set_charset('utf8', $link); | ||
| + | $charset = mysql_client_encoding($link); | ||
| + | </code> | ||
| + | |||
| + | Using ''mysqli'' driver instead of ''mysql'': | ||
| + | |||
| + | <code> | ||
| + | $link = mysqli_connect('localhost', 'user', 'pass', 'world'); | ||
| + | mysqli_set_charset('utf8', $link); | ||
| + | $charset = mysqli_character_set_name($link); | ||
| + | </code> | ||
| + | |||
| + | === Global Variables === | ||
| + | |||
| + | You can change the database to use UTF8 by changing the runtime variables: | ||
| + | |||
| + | <code> | ||
| + | SET @@character_set_client = 'utf8'; | ||
| + | SET @@character_set_connection = 'utf8'; | ||
| + | SET @@character_set_database = 'utf8'; | ||
| + | SET @@character_set_results = 'utf8'; | ||
| + | SET @@character_set_server = 'utf8'; | ||
| + | </code> | ||
| + | |||
| + | === Database Configuration === | ||
| + | |||
| + | MySQL needs to be configured to use UTF8, or it will still use LATIN1 by default: | ||
| + | |||
| + | <code> | ||
| + | [mysqld_safe] | ||
| + | character-set-server=utf8 | ||
| + | |||
| + | [mysqld] | ||
| + | character-set-server=utf8 | ||
| + | |||
| + | [client] | ||
| + | default-character-set=utf8 | ||
| + | |||
| + | [mysqldump] | ||
| + | default-character-set=utf8 | ||
| + | |||
| + | [mysql] | ||
| + | default-character-set=utf8 | ||
| + | |||
| + | [mysqladmin] | ||
| + | default-character-set=utf8 | ||
| + | |||
| + | [mysqlcheck] | ||
| + | default-character-set=utf8 | ||
| + | |||
| + | [mysqlimport] | ||
| + | default-character-set=utf8 | ||
| + | |||
| + | [mysqlshow] | ||
| + | default-character-set=utf8 | ||
| + | </code> | ||
