NumberFormatter::parseCurrency

numfmt_parse_currency

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)

NumberFormatter::parseCurrency -- numfmt_parse_currency通貨をパースする

説明

オブジェクト指向型

public float NumberFormatter::parseCurrency ( string $value , string &$currency [, int &$position ] )

手続き型

float numfmt_parse_currency ( NumberFormatter $fmt , string $value , string &$currency [, int &$position ] )

現在のフォーマッタを使用して、文字列を数値と通貨にパースします。

パラメータ

fmt

NumberFormatter オブジェクト。

currency

通貨名 (3 文字の ISO 4217 通貨コード) を受け取るパラメータ。

position

文字列中でパースを開始する位置のオフセット。 結果を返す際に、この値はパース終了時のオフセットを保持します。

返り値

パースした数値、あるいはエラー時に FALSE を返します。

例1 numfmt_parse_currency() の例

<?php
$fmt 
numfmt_create'de_DE'NumberFormatter::CURRENCY );
$num "1.234.567,89\xc2\xa0$";
echo 
"We have ".numfmt_parse_currency($fmt$num$curr)." in $curr\n";
?>

例2 オブジェクト指向の例

<?php
$fmt 
= new NumberFormatter'de_DE'NumberFormatter::CURRENCY );
$num "1.234.567,89\xc2\xa0$";
echo 
"We have ".$fmt->parseCurrency($num$curr)." in $curr\n";
?>

上の例の出力は以下となります。

We have 1234567.89 in USD

参考

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User Contributed Notes 2 notes

up
4
daniel at danielphenry dot com
3 years ago
The given examples confused me a bit. This may be a bit more clear:

$region = 'en_US';
$currency = 'USD';
$formatter = new NumberFormatter($region, NumberFormatter::CURRENCY);
echo $formatter->parseCurrency(12543.67, $currency);

Responds with:

$12,543.67
up
1
info at mm-newmedia dot de
10 months ago
In reply to daniel at danielphenry dot com example note beneath. The given example by Daniel returns false under PHP7.x, which is a normal behavior since NumberFormatter::parseCurrency() is a method for parsing currency strings. It is trying to split up the given string in a float and a currency.

While using strict types under PHP7 the following example makes it more clearer.

<?php
declare(strict_types=1);
namespace
MMNewmedia;

$oParser = new \NumberFormatter('de_DE', \NumberFormatter::CURRENCY);
var_dump($oParser->parseCurrency("1.234.567,89\xc2\xa0€", $currency), $currency));
?>

This example returns: "float(1234567.89) string(3) "EUR"

This is the expected behavior.

The following example runs into a type error, which is absolutely right, since this method is vor parsing strings and not vor formatting floats into currency strings.

<?php
declare(strict_types=1);
namespace
MMNewmedia;

try {
   
$oCurrencyParser = new \NumberFormatter('de_DE', \NumberFormatter::CURRENCY);
   
$currency = 'EUR';
   
var_dump($oCurrencyParser->parseCurrency(1.234, $currency), $currency);
} catch (\
TypeError $oTypeError) {
   
var_dump($oTypeError->getMessage());
}
?>

This example returns "NumberFormatter::parseCurrency() expects parameter 1 to be string, float given".

If you want to parse floats into a currency string use the http://php.net/manual/en/numberformatter.formatcurrency.php method as shown in the next example.

<?php
declare(strict_types=1);
namespace
MMNewmedia;

$oFormatter = new \NumberFormatter('de_DE', \NumberFormatter::CURRENCY);
var_dump($oFormatter->formatCurrency(1234567.89, 'EUR'));
?>

This returns string(17) "1.234.567,89 €" as expected.
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