Is there an easy way to convert a number to a word in PHP?
In PHP, is there an easy way to convert a number to a word? For instance, 27 to twenty-seven.
我在网上找到了一些（2007/2008）源代码，因为它是版权的，但是我可以自由使用它并修改它，所以我把它放在这里并在CC-Wiki下重新许可：
<?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 ($digit)
{
case "0":
return "zero";
case "1":
return "one";
case "2":
return "two";
case "3":
return "three";
case "4":
return "four";
case "5":
return "five";
case "6":
return "six";
case "7":
return "seven";
case "8":
return "eight";
case "9":
return "nine";
}
}
Alternatively, you can use the NumberFormatter class from intl package in PHP . Here's a sample code to get you started (for commandline):
<?php
if ($argc < 3)
{
echo "usage: php {$argv[0]} lang-tag number ...n";
exit;
}
array_shift($argv);
$lang_tag = array_shift($argv);
$nf1 = new NumberFormatter($lang_tag, NumberFormatter::DECIMAL);
$nf2 = new NumberFormatter($lang_tag, NumberFormatter::SPELLOUT);
foreach ($argv as $num)
{
echo $nf1->format($num).' is '.$nf2->format($num)."n";
}
There is the Numbers_Words package in PECL. It does exactly what you ask for. The following languages are supported:
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