<?php
 
function unidad($numuero){
    switch ($numuero)
    {
    case 9:
    {
    $numu = "NUEVE";
    break;
    }
    case 8:
    {
    $numu = "OCHO";
    break;
    }
    case 7:
    {
    $numu = "SIETE";
    break;
    }
    case 6:
    {
    $numu = "SEIS";
    break;
    }
    case 5:
    {
    $numu = "CINCO";
    break;
    }
    case 4:
    {
    $numu = "CUATRO";
    break;
    }
    case 3:
    {
    $numu = "TRES";
    break;
    }
    case 2:
    {
    $numu = "DOS";
    break;
    }
    case 1:
    {
    $numu = "UNO";
    break;
    }
    case 0:
    {
    $numu = "";
    break;
    }
    }
    return $numu;
}
 
function decena($numdero){
 
    if ($numdero >= 90 && $numdero <= 99)
    {
    $numd = "NOVENTA ";
    if ($numdero > 90)
    $numd = $numd."Y ".(unidad($numdero - 90));
    }
    else if ($numdero >= 80 && $numdero <= 89)
    {
    $numd = "OCHENTA ";
    if ($numdero > 80)
    $numd = $numd."Y ".(unidad($numdero - 80));
    }
    else if ($numdero >= 70 && $numdero <= 79)
    {
    $numd = "SETENTA ";
    if ($numdero > 70)
    $numd = $numd."Y ".(unidad($numdero - 70));
    }
    else if ($numdero >= 60 && $numdero <= 69)
    {
    $numd = "SESENTA ";
    if ($numdero > 60)
    $numd = $numd."Y ".(unidad($numdero - 60));
    }
    else if ($numdero >= 50 && $numdero <= 59)
    {
    $numd = "CINCUENTA ";
    if ($numdero > 50)
    $numd = $numd."Y ".(unidad($numdero - 50));
    }
    else if ($numdero >= 40 && $numdero <= 49)
    {
    $numd = "CUARENTA ";
    if ($numdero > 40)
    $numd = $numd."Y ".(unidad($numdero - 40));
    }
    else if ($numdero >= 30 && $numdero <= 39)
    {
    $numd = "TREINTA ";
    if ($numdero > 30)
    $numd = $numd."Y ".(unidad($numdero - 30));
    }
    else if ($numdero >= 20 && $numdero <= 29)
    {
    if ($numdero == 20)
    $numd = "VEINTE ";
    else
    $numd = "VEINTI".(unidad($numdero - 20));
    }
        else if ($numdero >= 10 && $numdero <= 19)
        {
            switch ($numdero){
                case 10:
                {
                    $numd = "DIEZ ";
                    break;
                }
                case 11:
                {
                    $numd = "ONCE ";
                    break;
                }
                case 12:
                {
                    $numd = "DOCE ";
                    break;
                }
                case 13:
                {
                    $numd = "TRECE ";
                    break;
                }
                case 14:
                {
                    $numd = "CATORCE ";
                    break;
                }
                case 15:
                {
                    $numd = "QUINCE ";
                    break;
                }
                case 16:
                {
                    $numd = "DIECISEIS ";
                    break;
                }
                case 17:
                {
                    $numd = "DIECISIETE ";
                    break;
                }
                case 18:
                {
                    $numd = "DIECIOCHO ";
                    break;
                }
                case 19:
                {
                    $numd = "DIECINUEVE ";
                    break;
                }
            }
        }
        else
            $numd = unidad($numdero);
        return $numd;
}
 
function centena($numc){
	if ($numc >= 100)
	{
		if ($numc >= 900 && $numc <= 999)
		{
			$numce = "NOVECIENTOS ";
		if ($numc > 900)
			$numce = $numce.(decena($numc - 900));
		}
		else if ($numc >= 800 && $numc <= 899)
		{
			$numce = "OCHOCIENTOS ";
			if ($numc > 800)
				$numce = $numce.(decena($numc - 800));
		}
		else if ($numc >= 700 && $numc <= 799)
		{
				$numce = "SETECIENTOS ";
			if ($numc > 700)
				$numce = $numce.(decena($numc - 700));
		}
		else if ($numc >= 600 && $numc <= 699)
		{
				$numce = "SEISCIENTOS ";
			if ($numc > 600)
				$numce = $numce.(decena($numc - 600));
		}
		else if ($numc >= 500 && $numc <= 599)
		{
				$numce = "QUINIENTOS ";
			if ($numc > 500)
				$numce = $numce.(decena($numc - 500));
		}
		else if ($numc >= 400 && $numc <= 499)
		{
			$numce = "CUATROCIENTOS ";
			if ($numc > 400)
				$numce = $numce.(decena($numc - 400));
		}
		else if ($numc >= 300 && $numc <= 399)
		{
				$numce = "TRESCIENTOS ";
			if ($numc > 300)
				$numce = $numce.(decena($numc - 300));
		}
		else if ($numc >= 200 && $numc <= 299)
		{
		$numce = "DOSCIENTOS ";
		if ($numc > 200)
			$numce = $numce.(decena($numc - 200));
		}
		else if ($numc >= 100 && $numc <= 199)
		{
			if ($numc == 100)
				$numce = "CIEN ";
			else
				$numce = "CIENTO ".(decena($numc - 100));
		}
	}
	else
		$numce = decena($numc);
 
	return $numce;
}
 
function miles($nummero){
	if ($nummero >= 1000 && $nummero < 2000){
		$numm = "MIL ".(centena($nummero%1000));
	}
	if ($nummero >= 2000 && $nummero <10000){
		$numm = unidad(Floor($nummero/1000))." MIL ".(centena($nummero%1000));
	}
	if ($nummero < 1000)
		$numm = centena($nummero);
 
	return $numm;
}
 
function decmiles($numdmero){
	if ($numdmero == 10000)
		$numde = "DIEZ MIL";
	if ($numdmero > 10000 && $numdmero <20000){
		$numde = decena(Floor($numdmero/1000))."MIL ".(centena($numdmero%1000));
	}
	if ($numdmero >= 20000 && $numdmero <100000){
		$numde = decena(Floor($numdmero/1000))." MIL ".(miles($numdmero%1000));
	}
	if ($numdmero < 10000)
	$numde = miles($numdmero);
 
	return $numde;
}
 
function cienmiles($numcmero){
	if ($numcmero == 100000)
		$num_letracm = "CIEN MIL";
	if ($numcmero >= 100000 && $numcmero <1000000){
		$num_letracm = centena(Floor($numcmero/1000))." MIL ".(centena($numcmero%1000));
	}
	if ($numcmero < 100000)
		$num_letracm = decmiles($numcmero);
	return $num_letracm;
}
 
function millon($nummiero){
	if ($nummiero >= 1000000 && $nummiero <2000000){
		$num_letramm = "UN MILLON ".(cienmiles($nummiero%1000000));
	}
	if ($nummiero >= 2000000 && $nummiero <10000000){
		$num_letramm = unidad(Floor($nummiero/1000000))." MILLONES ".(cienmiles($nummiero%1000000));
	}
	if ($nummiero < 1000000)
		$num_letramm = cienmiles($nummiero);
 
	return $num_letramm;
}
 
function decmillon($numerodm){
	if ($numerodm == 10000000)
		$num_letradmm = "DIEZ MILLONES";
	if ($numerodm > 10000000 && $numerodm <20000000){
		$num_letradmm = decena(Floor($numerodm/1000000))."MILLONES ".(cienmiles($numerodm%1000000));
	}
	if ($numerodm >= 20000000 && $numerodm <100000000){
		$num_letradmm = decena(Floor($numerodm/1000000))." MILLONES ".(millon($numerodm%1000000));
	}
	if ($numerodm < 10000000)
		$num_letradmm = millon($numerodm);
 
	return $num_letradmm;
}
 
function cienmillon($numcmeros){
	if ($numcmeros == 100000000)
		$num_letracms = "CIEN MILLONES";
	if ($numcmeros >= 100000000 && $numcmeros <1000000000){
		$num_letracms = centena(Floor($numcmeros/1000000))." MILLONES ".(millon($numcmeros%1000000));
	}
	if ($numcmeros < 100000000)
		$num_letracms = decmillon($numcmeros);
	return $num_letracms;
}
 
function milmillon($nummierod){
	if ($nummierod >= 1000000000 && $nummierod <2000000000){
		$num_letrammd = "MIL ".(cienmillon($nummierod%1000000000));
	}
	if ($nummierod >= 2000000000 && $nummierod <10000000000){
		$num_letrammd = unidad(Floor($nummierod/1000000000))." MIL ".(cienmillon($nummierod%1000000000));
	}
	if ($nummierod < 1000000000)
		$num_letrammd = cienmillon($nummierod);
 
	return $num_letrammd;
}
 
function convertir($numero){
    $num = str_replace(",","",$numero);
    $num = number_format($num,2,'.','');
    $cents = substr($num,strlen($num)-2,strlen($num)-1);
    $num = (int)$num;

    $numf = milmillon($num);

return $numf.' '.$cents.'/100 Bolivianos';
}