NumberFormatter::create

numfmt_create

NumberFormatter::__construct

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)

NumberFormatter::create -- numfmt_create -- NumberFormatter::__construct — 数値フォーマッタを作成する

説明

オブジェクト指向型 (メソッド)

public static NumberFormatter::create(string $locale, int $style, ?string $pattern = null): ?NumberFormatter

手続き型

numfmt_create(string $locale, int $style, ?string $pattern = null): ?NumberFormatter

オブジェクト指向型 (コンストラクタ):

public NumberFormatter::__construct(string $locale, int $style, ?string $pattern = null)

数値フォーマッタを作成します。

パラメータ

locale: 数値フォーマットするロケール (ロケール名。たとえば en_CA)。
style: フォーマットの形式。フォーマット形式定数のいずれか。 NumberFormatter::PATTERN_DECIMAL あるいは NumberFormatter::PATTERN_RULEBASED を指定した場合は指定したパターンの数値フォーマットをオープンします。これは、それぞれ » ICU DecimalFormat ドキュメントあるいは » ICU RuleBasedNumberFormat ドキュメントで述べられている構文を満たす必要があります。
pattern: 選択した形式がパターンを要求するものである場合のパターン文字列。

戻り値

NumberFormatter オブジェクト、あるいはエラー時に null を返します。

変更履歴

バージョン	説明
8.0.0	`pattern` は、nullable になりました。

例

例1 numfmt_create() の例

<?php
$fmt = numfmt_create( 'de_DE', NumberFormatter::DECIMAL );
echo numfmt_format($fmt, 1234567.891234567890000)."\n";
$fmt = numfmt_create( 'it', NumberFormatter::SPELLOUT );
echo numfmt_format($fmt, 1142)."\n";
?>

例2 NumberFormatter::create() の例

<?php
$fmt = new NumberFormatter( 'de_DE', NumberFormatter::DECIMAL );
echo $fmt->format(1234567.891234567890000)."\n";
$fmt = new NumberFormatter( 'it', NumberFormatter::SPELLOUT );
echo $fmt->format(1142)."\n";
?>

上の例の出力は以下となります。

1.234.567,891
millicentoquarantadue

参考

numfmt_format() - 数値をフォーマットする
numfmt_parse() - 数値をパースする

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User Contributed Notes 3 notes

down

F. Poirotte ¶

15 years ago

When formatting durations using the NumberFormatter::DURATION type, you may also need to use NumberFormatter::setTextAttribute to get the desired output.

<?php

$fmt = new NumberFormatter('en', NumberFormatter::DURATION);
// Outputs: string(7) "3:25:45"
var_dump($fmt->format(12345));

// "%in-numerals" is the default ruleset, so this results in the same as above.
$fmt->setTextAttribute(NumberFormatter::DEFAULT_RULESET, "%in-numerals");
// Outputs: string(7) "3:25:45"
var_dump($fmt->format(12345));

$fmt->setTextAttribute(NumberFormatter::DEFAULT_RULESET, "%with-words");
// Outputs: string(31) "3 hours, 25 minutes, 45 seconds"
var_dump($fmt->format(12345));

$fmt2 = new NumberFormatter('fr', NumberFormatter::DURATION);
// Outputs: string(7) "12 345"
// See notes below.
var_dump($fmt2->format(12345));

?>

This is a little counter-intuitive because there is not much doc available about the DURATION type.

Also, as far as I can tell, only the English (en) locale has support for the "%in-numerals" & "%with-words" rulesets. Other locales seem to simply format the input as if the DECIMAL type had been used (at least using "fr" or "de" as the target locale).

One way to provide that feature across different locales is to extract the ruleset implicitely used by NumberFormatter::DURATION and adapt it for the locales you're targetting. Use NumberFormatter::getPattern to extract the ruleset.

down

igorsantos07 ¶

6 years ago

Although there are ORDINAL and SPELLOUT formatters, it's not possible to join these together to turn "2" into "second". You'll either get "2nd", or "two", or something unexpected if you try to use bitwise operators.

down

daniel dot rhodes at warpasylum dot co dot uk ¶

13 years ago

It should be noted that the locale string passed into NumberFormatter's constructor doesn't play with UCA keywords quite as readily as, say, the Collator and IntlDateFormatter classes' constructors.

According to the Unicode spec (http://www.unicode.org/reports/tr35), I should be able to specify a locale of "ja_JP@numbers=jpanfin" which, for spellout mode, should give me Japanese financial (ie. anti-forgery) numerals. When passed into NumberFormatter's constructor, "ja_JP@numbers=jpanfin" doesn't work.

However, when I look at a dump of NumberFormatter::getPattern() for the ja_JP locale, I see that the financial numerals *are* in there (as %financial). Here's how we wrangle them out of the NumberFormatter:

<?php
$number = 1234567890;

$formatter = new NumberFormatter('ja_JP', NumberFormatter::SPELLOUT);

$formatter->setTextAttribute(NumberFormatter::DEFAULT_RULESET, "%financial");

echo $formatter->format($number);
//above gives [拾弐億参千四百伍拾六萬七千八百九拾] (as opposed to [十二億三千四百五十六万七千八百九十]) - bingo!
?>

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