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+# Numbers_Words
+
+## Introduction
+
+With `PEAR::Numbers_Words` class you can change an integer number
+to simple words. This can be usefull when you need to spell a currency
+value e.g. on an invoice.
+
+You can choose between several languages (language files are located
+in `Numbers/Words/` directory).
+
+BTW: if you need to change number to currency, use `money_format()`
+PHP function (available since 4.3 (not yet released)). But you must
+know that locale `LC_MONETARY` rules are sometimes unclear.
+
+## Getting started
+
+First you need to install Numbers_Words PEAR package.
+You can do it (as root) with:
+
+```
+pear install Numbers_Words
+```
+
+In your php script you need to load `Numbers/Words.php` header file:
+
+```php
+require_once('Numbers/Words.php');
+```
+
+Then you can call `Numbers_Words::toWords()` function with two
+arguments: integer number (can be a string with digits) and
+optional locale name (default is `en_US`):
+
+```php
+$ret = Numbers_Words::toWords($num, "en_GB");
+if (PEAR::isError($ret)) {
+    echo "Error: " . $ret->message . "\n";
+  } else {
+    echo "Num $num in British English is '<b>$ret</b>'<p>\n";
+}
+```
+
+For  this would display:
+
+`Num 12340000000 in British English is '<b>twelve thousand million three hundred forty million</b>'<p>`
+
+## Current State
+
+The current release can be found at the PEAR webpage:
+  http://pear.php.net/package-info.php?package=Numbers_Words
+
+For the time of writting this Readme file, Numbers_spell package has the
+status beta, which means there can be samo bugs, and it is under development.
+This is not mature code.
+
+## Development
+
+This package needs help from people, who can write language modules other
+than Polish and English.
+
+## Package Content
+
+- `README.md` - this file
+- `ChangeLog` - change log
+- `test-numbers-words.php` - test file showing Numbers_Words example usage
+- `Words.php` - main class file, that loads language modules on demand
+- `Words/lang.{LOCALE_NAME}.php` - language modules
+
+There are available the following modules (called by locale name,
+in alphabetical order):
+
+-  `az`     - Azerbaijani language.  
+              Author: Shahriyar Imanov
+
+-  `bg`     - Bulgarian language (in WIN-1251 charset).  
+              Author: Kouber Saparev
+
+-  `cs`     - Czech language.  
+              Author: Petr 'PePa' Pavel
+
+-  `de`     - German language.  
+              Author: Piotr Klaban
+
+-  `dk`     - Danish language.  
+              Author: Jesper Veggerby
+
+-  `en_100` - Donald Knuth number naming system, in English language.  
+              Author: Piotr Klaban
+
+-  `en_GB`  - British English notation of numbers, where
+              one billion is 1000000 times one million.
+              1000 times million is just 'thousand million' here.
+              I do not use a word billiard here, because
+              English people do not use it often, and even could not know it.  
+              Author: Piotr Klaban
+
+-  `en_US`  - American English notation of numbers, where
+              one billion is 1000 times one million  
+              Author: Piotr Klaban
+
+-  `es`     - Spanish (Castellano) language.  
+              Author: Xavier Noguer
+
+-  `es_AR`  - Argentinian Spanish language.  
+              Author: Martin Marrese
+
+-  `et`     - Estonian language.  
+              Author: Erkki Saarniit
+
+-  `fr`     - French language.  
+              Author: Kouber Saparev
+
+-  `fr_BE`  - French (Belgium) language.  
+              Author: Kouber Saparev, Philippe Bajoit
+
+-  `he`     - Hebrew language.  
+              Author: Hadar Porat
+
+-  `hu_HU`  - Hungarian language.  
+              Author: Nils Homp
+
+-  `id`     - Indonesia language.  
+              Authors: Ernas M. Jamil, Arif Rifai Dwiyanto
+
+-  `it_IT`  - Italian language.  
+              Authors: Filippo Beltramini, Davide Caironi
+
+-  `lt`     - Lithuanian language.  
+              Author: Laurynas Butkus
+
+-  `nl`     - Dutch language.  
+              Author: WHAM van Dinter
+
+-  `pl`     - Polish language (in an internet standard charset ISO-8859-2)  
+              Author: Piotr Klaban
+
+-  `pt_BR`  - Brazilian Portuguese language.  
+              Authors: Marcelo Subtil Marcal, Mario H.C.T., Igor Feghali
+
+-  `ro_RO`  - Romanian language.  
+              Author: Bogdan Stancescu	
+
+-  `ru`     - Russian language.  
+              Author: Andrey Demenev
+
+-  `sv`     - Swedish language.  
+              Author: Robin Ericsson
+
+-  `tr_TR`  - Turkish language.  
+              Author: Shahriyar Imanov
+
+## What if numbers have fraction part?
+
+You can split the number by the coma or dot. The example
+function was provided by Ernas M. Jamil (see below).
+I do not know if the splitting and concatenating numbers
+should be supported by Numbers_Words.. Does each language
+spell numbers with a 'coma'/'koma'? What do you think?
+
+```php
+function num2word($num, $fract = 0) {
+        require_once('Numbers/Words.php');
+
+        $num = sprintf("%." . $fract . "f", $num);
+        $fnum = explode('.', $num);
+
+        $ret =  Numbers_Words::toWords($fnum[0], "id");
+        if (!$fract) return $ret;
+
+        $ret .=  ' koma '; // point in english
+        $ret .= Numbers_Words::toWords($fnum[1], "id");
+
+        return $ret;
+}
+```
+
+## How to convert decimal part and not fraction part of the currency value?
+
+Rob King send me a patch that would allow to leave fraction part in digits.
+I.e. you can convert 31.01 into 'thirty-one pounds 01 pence':
+
+```php
+  require_once('Numbers/Words.php');
+  require_once('Numbers/Words/lang.en_GB.php');
+
+  $obj = new Numbers_Words_en_GB;
+  $convert_fraction = false;
+  print $obj->toCurrencyWords('GBP', '31', '01', $convert_fraction) . "\n";
+```
+
+## How to write new Language Files
+
+Just copy existing `en_US` or `en_GB` etc. file into `lang.{your_country/locale code}.php`
+and translate digits, numbers, tousands to your language. Then please send it
+to the author to the address [email protected].
+
+## Credits
+
+All changes from other people are desrcribed with details in ChangeLog.
+There are also names of the people who send me patches etc.
+Authors of the language files are mentioned in the language files directly
+as the author.