Šumniki - mb_detect_encoding

$fieldValues = array (
    'software' => 'Šumnik',
    'licensee' => 'Čumnik',
    'company'  => 'Žumnik',
    'date'     => date('F d, Y'),
    'time'     => date('H:i:s'),
    'city'     => 'Apes',
    'country'  => 'Mars'
);

$convert = array();
setlocale(LC_CTYPE, 'sl_SI.UTF-8');
foreach( $fieldValues as $string )
        $convert[] = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $string);