fixed "normaliza" functions written below to include Slavic Latin characters... also, it doesn't return lowercase any more (you can easily get that by applying strtolower yourself)...
also, renamed to normalize()
<?php
function normalize ($string) {
$table = array(
'Å '=>'S', 'Å¡'=>'s', 'Ä'=>'Dj', 'Ä'=>'dj', 'Ž'=>'Z', 'ž'=>'z', 'Ä'=>'C', 'Ä'=>'c', 'Ä'=>'C', 'Ä'=>'c',
'Ã'=>'A', 'Ã'=>'A', 'Ã'=>'A', 'Ã'=>'A', 'Ã'=>'A', 'Ã
'=>'A', 'Ã'=>'A', 'Ã'=>'C', 'Ã'=>'E', 'Ã'=>'E',
'Ã'=>'E', 'Ã'=>'E', 'Ã'=>'I', 'Ã'=>'I', 'Ã'=>'I', 'Ã'=>'I', 'Ã'=>'N', 'Ã'=>'O', 'Ã'=>'O', 'Ã'=>'O',
'Ã'=>'O', 'Ã'=>'O', 'Ã'=>'O', 'Ã'=>'U', 'Ã'=>'U', 'Ã'=>'U', 'Ã'=>'U', 'Ã'=>'Y', 'Ã'=>'B', 'Ã'=>'Ss',
'à '=>'a', 'á'=>'a', 'â'=>'a', 'ã'=>'a', 'ä'=>'a', 'å'=>'a', 'æ'=>'a', 'ç'=>'c', 'è'=>'e', 'é'=>'e',
'ê'=>'e', 'ë'=>'e', 'ì'=>'i', 'Ã'=>'i', 'î'=>'i', 'ï'=>'i', 'ð'=>'o', 'ñ'=>'n', 'ò'=>'o', 'ó'=>'o',
'ô'=>'o', 'õ'=>'o', 'ö'=>'o', 'ø'=>'o', 'ù'=>'u', 'ú'=>'u', 'û'=>'u', 'ý'=>'y', 'ý'=>'y', 'þ'=>'b',
'ÿ'=>'y', 'Å'=>'R', 'Å'=>'r',
);
return strtr($string, $table);
}
?>