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PHP - Manual: NumberFormatter::setPattern

2024-12-22

NumberFormatter::setPattern

numfmt_set_pattern

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

NumberFormatter::setPattern -- numfmt_set_patternSet formatter pattern

说明

面向对象风格

public NumberFormatter::setPattern(string $pattern): bool

过程化风格

numfmt_set_pattern(NumberFormatter $formatter, string $pattern): bool

Set the pattern used by the formatter. Can not be used on a rule-based formatter.

参数

formatter

NumberFormatter object.

pattern

Pattern in syntax described in » ICU DecimalFormat documentation.

返回值

成功时返回 true, 或者在失败时返回 false

范例

示例 #1 numfmt_set_pattern() example

<?php
$fmt 
numfmt_create'de_DE'NumberFormatter::DECIMAL );
echo 
"Pattern: ".numfmt_get_pattern($fmt)."\n";
echo 
numfmt_format($fmt1234567.891234567890000)."\n";
numfmt_set_pattern($fmt"#0.# kg");
echo 
"Pattern: ".numfmt_get_pattern($fmt)."\n";
echo 
numfmt_format($fmt1234567.891234567890000)."\n";
?>

示例 #2 OO example

<?php
$fmt 
= new NumberFormatter'de_DE'NumberFormatter::DECIMAL );
echo 
"Pattern: ".$fmt->getPattern()."\n";
echo 
$fmt->format(1234567.891234567890000)."\n";
$fmt->setPattern("#0.# kg");
echo 
"Pattern: ".$fmt->getPattern()."\n";
echo 
$fmt->format(1234567.891234567890000)."\n";
?>

以上例程会输出:

Pattern: #,##0.###
1.234.567,891
Pattern: #0.# kg
1234567,9 kg

参见

add a noteadd a note

User Contributed Notes 2 notes

up
10
Crash
1 year ago
If you're looking for the pattern syntax, their documentation is here: http://unicode.org/reports/tr35/tr35-numbers.html#Number_Format_Patterns
up
-1
Anonymous
3 years ago
setPattern appears to influence only the behavior of the format method, not the parse method of the NumberFormatter object.

$pattern = '#,##0';
$frmtr = NumberFormatter::create('en-US', NumberFormatter::DECIMAL);
$frmtr->setPattern($pattern);
echo $frmtr->parse('12.345');

// returns 12

官方地址:https://www.php.net/manual/en/numberformatter.setpattern.php

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