Most of the solutions lack conversion to single-byte encoding.
I use mb_convert_encoding($string,'windows-1251') to convert from UTF-8 in my case.
function ru2Lat($string)
{
$rus = array('ё','ж','ц','ч','ш','щ','ю','я','Ё','Ж','Ц','Ч','Ш','Щ','Ю','Я');
$lat = array('yo','zh','tc','ch','sh','sh','yu','ya','YO','ZH','TC','CH','SH','SH','YU','YA');
$string = str_replace($rus,$lat,$string);
$string = strtr($string,
"АБВГДЕЗИЙКЛМНОПРСТУФХЪЫЬЭабвгдезийклмнопрстуфхъыьэ",
"ABVGDEZIJKLMNOPRSTUFH_I_Eabvgdezijklmnoprstufh'i'e");
return($string);
}
function transliterate($string){
if (!is_string($string)) return $string;
return ru2lat(mb_convert_encoding($string,'windows-1251'));
}
function transliterate_array($a){
$c = array_map(transliterate,$a);
return $c;
}