Working with PHP, MySQL and UTF-8


Heres a list of actions you should do in order to get PHP + MySQL working with UTF-8:

1. Database:

CREATE DATABASE db_name
CHARACTER SET utf8
DEFAULT CHARACTER SET utf8
COLLATE utf8_general_ci
DEFAULT COLLATE utf8_general_ci
;

or if the database was already created:

ALTER DATABASE db_name
CHARACTER SET utf8
DEFAULT CHARACTER SET utf8
COLLATE utf8_general_ci
DEFAULT COLLATE utf8_general_ci
;

CREATE TABLE table_name(

)
DEFAULT CHARACTER SET utf8
COLLATE utf8_general_ci;

Or if the tables are already created:

ALTER TABLE tbl_name
DEFAULT CHARACTER SET utf8
COLLATE utf8_general_ci;

2. Enable this line in php.ini:

extension=php_mbstring.dll

and configure the following in the same file:

mbstring.language = Neutral
mbstring.internal_encoding = UTF-8
mbstring.encoding_translation = On
mbstring.http_input = auto
mbstring.http_output = UTF-8
mbstring.detect_order = auto
mbstring.substitute_character = none
default_charset = UTF-8

3. Use the following php functions instead:

mail() -> mb_send_mail()
strlen() -> mb_strlen()
strpos() -> mb_strpos()
strrpos() -> mb_strrpos()
substr() -> mb_substr()
strtolower() -> mb_strtolower()
strtoupper() -> mb_strtoupper()
substr_count() -> mb_substr_count()
ereg() -> mb_ereg()
eregi() -> mb_eregi()
ereg_replace() -> mb_ereg_replace()
eregi_replace() -> mb_eregi_replace()
split() -> mb_split()
htmlentities($var) -> htmlentities($var, ENT_QUOTES, ‘UTF-8’)

4. Use headers and meta tags like:

header(‘Content-type: text/html; charset=UTF-8’) ;

<meta http-equiv=”Content-type” value=”text/html; charset=UTF-8″ />

5. add charset to form

<form accept-charset=”utf-8″ …>

6. Before any insert / update in the database you should perform the following:

mysql_query(“SET NAMES ‘utf8′”);

or use this before making DB connection

mysql_set_charset(‘utf8’);

source:

http://akrabat.com/php/utf8-php-and-mysql/

http://tympanus.net/codrops/2009/08/31/solving-php-mysql-utf-8-issues/

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