MySQL ABC-HU

function mb_ucfirst($string,$encoding='UTF-8')
{
$first = mb_strtoupper(mb_substr($string, 0, 1,$encoding),$encoding);
return $first.mb_substr($string, 1,mb_strlen($string,$encoding),$encoding);
}

function convert_vowel($string,$direction,$encoding='UTF-8')
{
$letters = array("a","á","b","c","d","e","é","f","g","h","i","í","j","k","l","m","n","o","ó","ö","ő","p","q","r","s","t","u","ú","ü","ű","v","x","y","z");
$replace = array("01","02","03","04","05","06","07","08","09","10","11","12","13","14","15","16","17","18","19","20","21","22","23","24","25","26","27","28","29","30","31","32","33","34");
$text_made = "";
for ($i = 0; $i < mb_strlen($string,$encoding); $i++)
    {
    $letter =  mb_strtolower(mb_substr($string,$i,1,$encoding),$encoding);
    if (is_numeric($letter))
    {
    $letter .= mb_substr($string,$i+1,1,$encoding);
    $i++;
    }
    if ($direction == "in")
    {
    $letter = str_replace($letters, $replace, $letter);
    }
    elseif ($direction == "out")
    {
    $letter = str_replace($replace,$letters, $letter);
    }
    $text_made .= $letter;
    }
return $text_made;

}