<?php
/***********************************************************
* Class:        num2words (adapted form baa2words)
* Date:         June 2006
* Author:       Luis Pinto
* Original:
* Version:      1.0
* Date:         June 2003
* Author:       Barry A Andrew
* Copyright:    © BA Andrew 2003
***********************************************************
USAGE SAMPLE

    include('num2words.php');

    $amount = 12345.67

    $obj = new num2words( $amount )
    echo $obj->words;      // gives doze mil e trezentos e quarenta cinco Euros e sessenta sete centimos
    echo $obj->number;     // gives 12,345.67

    $obj = new num2words( $amount , 'dollars', 'c')
    echo  $obj->words;      // gives doze mil e trezentos e quarenta cinco dollars e sessenta sete c
    echo  $obj->number;     // gives 12,345.67


To alter default currency units, change the defines below
**************************************************************/
define("MAJOR", 'Euros');
define("MINOR", 'centimos');

class num2words  {
           var $pounds;
           var $pence;
           var $major;
           var $minor;
           var $words = '';
           var $number;
           var $magind;
           var $units = array('','um','dois','tres','quatro','cinco','seis','sete','oito','nove');
           var $teens = array('dez','onze','doze','treze','quatorze','quinze','dezassies','dezassete','dezoito','dezanove');
           var $tens = array('','dez','vinte','trinta','quarenta','cinquenta','sessenta','setenta','oitenta','noventa');
           var $cens = array('','cento','duzentos','trezentos','quatrocentos','quinhentos','seiscentos','setecentos','oitocentos','novecentos');
		   var $mag = array('','mil','milhão','bilhão','trilhão');

    function num2words($amount, $major=MAJOR, $minor=MINOR) {
             $this->major = $major;
             $this->minor = $minor;
             $this->number = number_format($amount,2);
             list($this->pounds,$this->pence) = explode('.',$this->number);
			 if ($this->pence==0){
                 $this->words = " $this->major";
			}else{
             	$groups = explode(',',$this->pence);
				$groups = array_reverse($groups);	
				$this->words = " $this->major e $this->pence $this->minor";
                 for ($this->magind=0; $this->magind<count($groups); $this->magind++) {
                      if (($this->magind==1)&&(strpos($this->words,'cem') === false)&&($groups[0]!='000'))
                           $this->words = ' e ' . $this->words;
                      $this->words =$this->major . ' e ' . $this->_build($groups[$this->magind]).$this->minor;
                 }
			 }

			 if ($this->pounds==0)
                 $this->words = "zero $this->words";
             else {
                 $groups = explode(',',$this->pounds);
                 $groups = array_reverse($groups);
                 for ($this->magind=0; $this->magind<count($groups); $this->magind++) {
                      if (($this->magind==1)&&(strpos($this->words,'cem') === false)&&($groups[0]!='000'))
                           $this->words = ' e ' . $this->words;
                      $this->words = $this->_build($groups[$this->magind]).$this->words;
                 }
             }
    }
    function _build($n) {
             $res = '';
             $na = str_pad("$n",3,"0",STR_PAD_LEFT);
             if ($na == '000') return '';
			 if ($na == '100') return ' cem ';
             if ($na{0} != 0 && $na != '100')
				 $res = ' '.$this->cens[$na{0}];
             if (($na{1}=='0')&&($na{2}=='0'))
                  return $res . ' ' . $this->mag[$this->magind];
             $res .= $res==''? '' : ' e';
             $t = (int)$na{1}; $u = (int)$na{2};
             switch ($t) {
                     case 0: $res .= ' ' . $this->units[$u]; break;
                     case 1: $res .= ' ' . $this->teens[$u]; break;
                     default:$res .= ' ' . $this->tens[$t] . ' ' . $this->units[$u] ; break;
             }
             $res .= ' ' . $this->mag[$this->magind];
             return $res;
    }
}
?>