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Thursday, December 16, 2004

Storing unicode texts in MySQL with phpMyAdmin

Today, I've received a personal mail/request from Sivanantham Hemamalini, working for IT leisure in Singapore. Since I was in company when received the mail, I couldn't answer immediately. If I understand the question right, it is about inputting Unicode texts especially Tamil in phpMyAdmin.

PhpMyAdmin's default characterset is iso-8859-1 and so if we enter anything in the form, browser will convert it into numerical html entities. Say for example, if we enter தமிழ் and submit the form, it will convert it to & #2980;& #2990;& #3007;& #2996;& #3021;. Because of this browser's behavior, it will be difficult to store the Unicode text as it is.

Solutions

Immediate solution I could think of is changing or forcing the browser's character encoding into utf-8. In Mozilla Firefox, it can be set via View -> Character Encoding -> Unicode (UTF-8)

Another elegant solution might be changing the phpMyAdmin configurations so that it sends and sets proper charset in Content-Type header as Content-Type: text/html; charset=utf-8
To do this, we have to edit the config.inc.php file found at phpMyAdmin's root directory:
$cfg['DefaultCharset'] = 'utf-8'; and
$cfg['AllowAnywhereRecoding'] = true;
These change of configurations should send proper headers. Anyhow, if the lang cookie is already set to some other charset, it won't reflect the changes. So, one may need to clear the cookies to see the changes.

3 comments:

Anonymous said...

I edit the config.inc.php file to this,
$cfg['DefaultCharset'] = 'utf-8'; and
$cfg['AllowAnywhereRecoding'] = true;
But i am getting error stating "Can not load iconv
or
recode extension needed for charset conversion,
configure php to allow using these extensions or
disable charset conversion in phpMyAdmin."
what is the solution for this.
I am using windows XP and php,v 2.8.2.1
thanks in advance
Hema

R. Rajesh Jeba Anbiah said...

Hema, as the error message says it couldn't load the iconv extension, as it is not enabled. You can enable and disable PHP extensions via php.ini configuration file.

Use phpinfo() function to find the path of php.ini file.
To enable the iconv extension, just uncomment the line ;extension=php_iconv.dll (that is just remove the leading semicolon ";") in php.ini
You may need to restart Apache for the changes to reflect. Again use phpinfo() to see if the module is enabled or not. Now, you're done.

This procedure applies to any PHP extensions on Windows.

Anonymous said...

Do you have to use phpMyAdmin? I would write a simple PHP script to accept the input correclty and post to the db. The other solutions sound like more work.