How to Convert a Number to a Word in PHP

Converting Numbers to Words in php

Naively, without dissecting your code too much, you could just call your existing code on the numbers to the left of the decimal, and then on the numbers to the right of the decimal, and then stick them together. It's a bit of a hack but it works:

<?php
define("MAJOR", 'pounds');
define("MINOR", 'p');
class toWords
{
    var $pounds;
    var $pence;
    var $major;
    var $minor;
    var $words = '';
    var $number;
    var $magind;
    var $units = array('', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine');
    var $teens = array('ten', 'eleven', 'twelve', 'thirteen', 'fourteen', 'fifteen', 'sixteen', 'seventeen', 'eighteen', 'nineteen');
    var $tens = array('', 'ten', 'twenty', 'thirty', 'forty', 'fifty', 'sixty', 'seventy', 'eighty', 'ninety');
    var $mag = array('', 'thousand', 'million', 'billion', 'trillion');

    function toWords($amount, $major = MAJOR, $minor = MINOR)
    {
        $this->__toWords__((int)($amount), $major);
        $whole_number_part = $this->words;
        #$right_of_decimal = (int)(($amount-(int)$amount) * 100);
        $strform = number_format($amount,2);
        $right_of_decimal = (int)substr($strform, strpos($strform,'.')+1);
        $this->__toWords__($right_of_decimal, $minor);
        $this->words = $whole_number_part . ' ' . $this->words;
    }

    function __toWords__($amount, $major)
    {
        $this->major  = $major;
        #$this->minor  = $minor;
        $this->number = number_format($amount, 2);
        list($this->pounds, $this->pence) = explode('.', $this->number);
        $this->words = " $this->major";
        if ($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($this->words, 'hundred') === false) && ($groups[0] != '000'))
                    $this->words = ' and ' . $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{0} != 0)
            $res = ' ' . $this->units[$na{0}] . ' hundred';
        if (($na{1} == '0') && ($na{2} == '0'))
            return $res . ' ' . $this->mag[$this->magind];
        $res .= $res == '' ? '' : ' and';
        $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;
    }
}
?>

Now your test works:

$amount = 12345.67;
$obj    = new toWords($amount);
echo $obj->words; // gives twelve thousand three hundred and forty five  pounds  sixty seven  p
echo '<br/>';
echo $obj->number; // gives 12,345.67

Is there an easy way to convert a number to a word in PHP?

I found some (2007/2008) source-code online and as it is copyright but I can use it freely and modify it however I want, so I place it here and re-license under CC-Wiki:

<?php
/**
 * English Number Converter - Collection of PHP functions to convert a number
 *                            into English text.
 *
 * This exact code is licensed under CC-Wiki on Stackoverflow.
 * http://creativecommons.org/licenses/by-sa/3.0/
 *
 * @link     http://stackoverflow.com/q/277569/367456
 * @question Is there an easy way to convert a number to a word in PHP?
 *
 * This file incorporates work covered by the following copyright and
 * permission notice:
 *
 *   Copyright 2007-2008 Brenton Fletcher. http://bloople.net/num2text
 *   You can use this freely and modify it however you want.
 */

function convertNumber($number)
{
    list($integer, $fraction) = explode(".", (string) $number);

    $output = "";

    if ($integer{0} == "-")
    {
        $output = "negative ";
        $integer    = ltrim($integer, "-");
    }
    else if ($integer{0} == "+")
    {
        $output = "positive ";
        $integer    = ltrim($integer, "+");
    }

    if ($integer{0} == "0")
    {
        $output .= "zero";
    }
    else
    {
        $integer = str_pad($integer, 36, "0", STR_PAD_LEFT);
        $group   = rtrim(chunk_split($integer, 3, " "), " ");
        $groups  = explode(" ", $group);

        $groups2 = array();
        foreach ($groups as $g)
        {
            $groups2[] = convertThreeDigit($g{0}, $g{1}, $g{2});
        }

        for ($z = 0; $z < count($groups2); $z++)
        {
            if ($groups2[$z] != "")
            {
                $output .= $groups2[$z] . convertGroup(11 - $z) . (
                        $z < 11
                        && !array_search('', array_slice($groups2, $z + 1, -1))
                        && $groups2[11] != ''
                        && $groups[11]{0} == '0'
                            ? " and "
                            : ", "
                    );
            }
        }

        $output = rtrim($output, ", ");
    }

    if ($fraction > 0)
    {
        $output .= " point";
        for ($i = 0; $i < strlen($fraction); $i++)
        {
            $output .= " " . convertDigit($fraction{$i});
        }
    }

    return $output;
}

function convertGroup($index)
{
    switch ($index)
    {
        case 11:
            return " decillion";
        case 10:
            return " nonillion";
        case 9:
            return " octillion";
        case 8:
            return " septillion";
        case 7:
            return " sextillion";
        case 6:
            return " quintrillion";
        case 5:
            return " quadrillion";
        case 4:
            return " trillion";
        case 3:
            return " billion";
        case 2:
            return " million";
        case 1:
            return " thousand";
        case 0:
            return "";
    }
}

function convertThreeDigit($digit1, $digit2, $digit3)
{
    $buffer = "";

    if ($digit1 == "0" && $digit2 == "0" && $digit3 == "0")
    {
        return "";
    }

    if ($digit1 != "0")
    {
        $buffer .= convertDigit($digit1) . " hundred";
        if ($digit2 != "0" || $digit3 != "0")
        {
            $buffer .= " and ";
        }
    }

    if ($digit2 != "0")
    {
        $buffer .= convertTwoDigit($digit2, $digit3);
    }
    else if ($digit3 != "0")
    {
        $buffer .= convertDigit($digit3);
    }

    return $buffer;
}

function convertTwoDigit($digit1, $digit2)
{
    if ($digit2 == "0")
    {
        switch ($digit1)
        {
            case "1":
                return "ten";
            case "2":
                return "twenty";
            case "3":
                return "thirty";
            case "4":
                return "forty";
            case "5":
                return "fifty";
            case "6":
                return "sixty";
            case "7":
                return "seventy";
            case "8":
                return "eighty";
            case "9":
                return "ninety";
        }
    } else if ($digit1 == "1")
    {
        switch ($digit2)
        {
            case "1":
                return "eleven";
            case "2":
                return "twelve";
            case "3":
                return "thirteen";
            case "4":
                return "fourteen";
            case "5":
                return "fifteen";
            case "6":
                return "sixteen";
            case "7":
                return "seventeen";
            case "8":
                return "eighteen";
            case "9":
                return "nineteen";
        }
    } else
    {
        $temp = convertDigit($digit2);
        switch ($digit1)
        {
            case "2":
                return "twenty-$temp";
            case "3":
                return "thirty-$temp";
            case "4":
                return "forty-$temp";
            case "5":
                return "fifty-$temp";
            case "6":
                return "sixty-$temp";
            case "7":
                return "seventy-$temp";
            case "8":
                return "eighty-$temp";
            case "9":
                return "ninety-$temp";
        }
    }
}

function convertDigit($digit)
{
    switch ($digit)
    {
        case "0":
            return "zero";
        case "1":
            return "one";
        case "2":
            return "two";
        case "3":
            return "three";
        case "4":
            return "four";
        case "5":
            return "five";
        case "6":
            return "six";
        case "7":
            return "seven";
        case "8":
            return "eight";
        case "9":
            return "nine";
    }
}

How to convert decimal number to words (money format) using PHP?

There's a PEAR library that can do this.

EDIT

Or you can, at the end of your code, do this

echo $test . ' cents';

Converting an integer to a string in PHP

You can use the strval() function to convert a number to a string.

From a maintenance perspective its obvious what you are trying to do rather than some of the other more esoteric answers. Of course, it depends on your context.

$var = 5;

// Inline variable parsing
echo "I'd like {$var} waffles"; // = I'd like 5 waffles

// String concatenation 
echo "I'd like ".$var." waffles"; // I'd like 5 waffles

// The two examples above have the same end value...
// ... And so do the two below

// Explicit cast 
$items = (string)$var; // $items === "5";

// Function call
$items = strval($var); // $items === "5";

Convert number | integer to words

You can use NumberFormatter class with SPELLOUT:

$nf = new NumberFormatter("en", NumberFormatter::SPELLOUT);
echo $nf->format(1999); // one thousand nine hundred ninety-nine

php: converting number to alphabet and vice versa

I don't understand at all the logic you're trying to use in that function. What you're trying to do seems very strange (why does 'a' map to zero and yet 'aa' maps to 26?), but this appears to work. (You will want to use some more test cases, I only checked that it gives the correct output for the case 'aba'.)

function toNum($data) {
    $alphabet = array( 'a', 'b', 'c', 'd', 'e',
                       'f', 'g', 'h', 'i', 'j',
                       'k', 'l', 'm', 'n', 'o',
                       'p', 'q', 'r', 's', 't',
                       'u', 'v', 'w', 'x', 'y',
                       'z'
                       );
    $alpha_flip = array_flip($alphabet);
    $return_value = -1;
    $length = strlen($data);
    for ($i = 0; $i < $length; $i++) {
        $return_value +=
            ($alpha_flip[$data[$i]] + 1) * pow(26, ($length - $i - 1));
    }
    return $return_value;
}

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