CREATE TABLE IF NOT EXISTS `_user_bonus` (
  `user` int(11) NOT NULL,
  `bonus` decimal(10,4) NOT NULL,
  `chkey` varchar(25) COLLATE utf8_unicode_ci NOT NULL,
  UNIQUE KEY `user` (`user`),
  KEY `chk` (`chkey`),
  KEY `bonus` (`bonus`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

INSERT INTO `_user_bonus` (`user`, `bonus`, `chkey`) VALUES
(54, '1048.4488', 'e45e895ec28b8bc0a33c9c4c2'),
(56, '51.2994', 'cb5a438a95bc6c24be8be265d'),
(40, '1000.2582', '0648b6453bed1aee11a672c8d');

INSERT INTO _user_bonus (`user`, `bonus`, `chkey`) 
VALUES (@user:='54',@bonus:='1058.4488',SUBSTRING(MD5(CONCAT(@bonus,'~',@user)),6,25))
ON DUPLICATE KEY UPDATE bonus=values(bonus),сhkey=values(chkey)

Backtrace

./libraries/charset_conversion.lib.php#106: iconv(
string 'CP1252',
string 'utf-8//TRANSLIT',
string 'Unknown column \'сhk\' in \'field list\'',
)
./libraries/DatabaseInterface.class.php#282: PMA_convertString(
string 'CP1252',
string 'utf-8',
string 'Unknown column \'сhk\' in \'field list\'',
)
./libraries/DatabaseInterface.class.php#2189: PMA_DatabaseInterface->convertMessage(string 'Unknown column \'сhk\' in \'field list\'')
./libraries/dbi/DBIMysqli.class.php#433: PMA_DatabaseInterface->formatError(
integer 1054,
string 'Unknown column \'сhk\' in \'field list\'',
)