in your page, you should have a meta tag to set the character set used by the browser, ussually for chinese you would us the big5 character set:
<meta http-equiv="Content-Type" content="text/html; charset=Big5" />
you may also need to edit your database connection to use the Chinese character set. in the connection file, find the following line:
$connectionName = mysql_pconnect($hostname_connectionName, $username_connectionName, $password_connectionName) or trigger_error(mysql_error(),E_USER_ERROR);
where connectionName is the name of the connection, and change it to:
$connectionName = mysql_pconnect($hostname_connectionName, $username_connectionName, $password_connectionName) or trigger_error(mysql_error(),E_USER_ERROR);
mysql_set_charset('big5',$connectionName);