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Solving PHP MySQL UTF-8 issues



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 […]
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. Before any insert / update in the database you should perform the following:
mysql_query("SET NAMES 'utf8'");