function huyify($word) {
	mb_internal_encoding('utf-8');
	$huyowels = array(
		'а'=>'я',
		'о'=>'ё',
		'у'=>'ю',
		'э'=>'е',
		'ы'=>'и',
	);
	$cons = explode(',','б,в,г,д,ж,з,й,к,л,м,н,п,р,с,т,ф,х,ц,ч,ш,щ');
	if(in_array(mb_substr($word, 0, 1), array_values($huyowels))) {
		$word = 'ху'.$word;
	} elseif (in_array($fletter = mb_substr($word, 0, 1), array_keys($huyowels))) {
		$hl = $huyowels[$fletter];
		$word = 'ху'.$hl.mb_substr($word, 1);
	} elseif (in_array(mb_substr($word, 0, 1), $cons)) {
		$word = huyify(mb_substr($word, 1));
	}
	return $word;
}