Numbers2words: Converts numbers to words (UK and US/FR)

Converts numbers to words.

Numbers range from 0 to 999.999.999.999.999

Note: argument to n2w is a string. Use strings for big number (usually bigger then 2^32) see example.php

For british (GB) numbers call with a optional second argument = 1.

British (GB)
n2w('1000000000',1) gives "one milliard"
n2w('1000000000000',1) gives "one billion"

American (US/FR)
n2w('1000000000') gives "one billion"
n2w('1000000000000') gives "one trillion"