Terbilang part 2

<?php

function terbilang($angka1)
{
    $temp="";
    //echo "terbilang". $angka."=".strlen($angka);
    $name = array("satu","dua","tiga","empat","lima","enam","tujuh","delapan","sembilan");
    for($i=0;$i<strlen($angka1);$i++) {
        $angka[$i]=substr($angka1, $i,1);
        //print substr($angka1, $i,1);

    }

    for($i=0;$i<strlen($angka1);$i++) {
        //echo $angka[$i];
        if((ord($angka[$i])>=48)and(ord($angka[$i])<=57)) {
            $temp.=$angka[$i];
            //echo $angka[$i];
        }
        //echo $angka[$i];
    }

    $text="";
    $angka=$temp;
    //echo "terbilang". $angka;

    if(strlen($angka)==0) {
        return false;

    }

    for($i=strlen($angka)-1;$i>=0;$i--) {
        $j=strlen($angka)-$i;
        $block[ceil($j/3)-1]=$angka[$i].$block[ceil($j/3)-1];
    }

    $block=array_reverse($block);
    for($i=0;$i<count($block);$i++) {
        $b = $block[$i];
        for($j=0;$j<strlen($b);$j++) {
            $pos = strlen($b)-$j;
            if(strlen($angka)==4) {
                if($i==0) {
                    if($name[$b[$j]-1]=="satu") {
                        $text="se";
                    }

                }

            } else if(($name[$b[$j]-1]=="satu")and($pos<>1)) {
                $text.="se";

            } else {
                if(($pos==1)and($b[$j]<>"0")and(substr($text,-8)=="sepuluh ")) {
                    $text=substr($text,0,strlen($text)-8);
                    if($name[$b[$j]-1]=="satu") {
                        $text.="se";

                    } else {
                        $text.=$name[$b[$j]-1]." ";

                    }
                    $text.="belas ";

                } else {
                    $text.=$name[$b[$j]-1]." ";

                }

            }
            if($b[$j]<>0) {
                if($pos==3) {
                    $text.="ratus ";

                } else if($pos==2) {
                    $text.="puluh ";

                }

            }

        }

        switch(count($block)-$i) {
            case 2 : $text.="ribu ";break 1;
            case 3 : $text.="juta ";break 1;
            case 4 : $text.="milyar ";break 1;
            case 5 : $text.="trilyun ";break 1;

        }

    }

    return $text;
    //print $text;
}