<?php
Class Terbilang {

    public static $dasar = array(1=>'satu','dua','tiga','empat','lima','enam','tujuh','delapan','sembilan');
    public static $angka = array(1000000000,1000000,1000,100,10,1);
    public static $satuan = array('milyar','juta','ribu','ratus','puluh','');

    public static function eja($n) {
        $i=0;
        $str="";
        while($n!=0){
            $count = (int)($n/self::$angka[$i]);
            if($count>=10) $str .= self::eja($count). " ".self::$satuan[$i]." ";
            else if($count > 0 && $count < 10)
                $str .= self::$dasar[$count] . " ".self::$satuan[$i]." ";
            $n -= self::$angka[$i] * $count;
            $i++;
        }
        $str = preg_replace("/satu puluh (\w+)/i","\\1 belas",$str);
        $str = preg_replace("/satu (ribu|ratus|puluh|belas)/i","se\\1",$str);
        return $str;
    }
}
foreach(range(1, 1000) as $i)
    echo Terbilang::eja($i).PHP_EOL;