How to store the data in unicode in hindi language

Choose utf8 character set and utf8_general_ci collation.

Obviously, Collation of the field (to which you want to store Hindi text) should be utf8_general_ci.

To alter your table field, run

ALTER TABLE `<table_name>` CHANGE `<field_name>` `<field_name>` VARCHAR(100) 
CHARSET utf8 COLLATE utf8_general_ci DEFAULT '' NOT NULL;

Once you’ve connected to database, run the following statement at first

mysql_set_charset('utf8');

Eg:

//setting character set
mysql_set_charset('utf8');

//insert Hindi text
mysql_query("INSERT INTO ....");

To retrieve data

//setting character set
mysql_set_charset('utf8');

//select Hindi text
mysql_query("SELECT * FROM ....");

Before you printing any unicode text (say Hindi text) on browser, you should have to set content type of that page by adding a meta tag

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

Eg:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Example Unicode</title>
</head>

<body>
<?php echo $hindiText; ?>
</body>
</html>

Update:

mysql_query("SET CHARACTER SET utf8") has changed tomysql_set_charset(‘utf8’);
This is the preferred way to change the charset. Using mysql_query() to set it (such as SET NAMES utf8) is not recommended. See http://php.net/manual/en/function.mysql-set-charset.php*

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