NumberFormatter::parse

numfmt_parse

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

NumberFormatter::parse -- numfmt_parse — Parse a number

说明

面向对象风格

public NumberFormatter::parse(string $string, int $type = NumberFormatter::TYPE_DOUBLE, int &$offset = null): int|float|false

过程化风格

numfmt_parse(
    NumberFormatter $formatter,
    string $string,
    int $type = NumberFormatter::TYPE_DOUBLE,
    int &$offset = null
): int|float|false

Parse a string into a number using the current formatter rules.

参数

formatter: NumberFormatter object.
string: The string to parse for the number.
type: The formatting type to use. By default, NumberFormatter::TYPE_DOUBLE is used. Note that NumberFormatter::TYPE_CURRENCY is not supported; use NumberFormatter::parseCurrency() instead.
offset: Offset in the string at which to begin parsing. On return, this value will hold the offset at which parsing ended.

返回值

The value of the parsed number or false on error.

示例

示例 #1 numfmt_parse() example

<?php
$fmt = numfmt_create( 'de_DE', NumberFormatter::DECIMAL );
$num = "1.234.567,891";
echo numfmt_parse($fmt, $num)."\n";
echo numfmt_parse($fmt, $num, NumberFormatter::TYPE_INT32)."\n";
?>

示例 #2 OO example

<?php
$fmt = new NumberFormatter( 'de_DE', NumberFormatter::DECIMAL );
$num = "1.234.567,891";
echo $fmt->parse($num)."\n";
echo $fmt->parse($num, NumberFormatter::TYPE_INT32)."\n";
?>

以上示例会输出：

1234567.891
1234567

参见

numfmt_get_error_code() - Get formatter's last error code
numfmt_format() - Format a number
numfmt_parse_currency() - Parse a currency number

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用户贡献的备注 2 notes

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rdohms at php dot net ¶

12 years ago

It interesting to note that the expected behavior for this function may change according to your ICU version.

In ICU 4.4.2 (standard for Ubuntu 10.* with PHP 5.3.5)

    With locale 'en', input of 100,1 returns 1001

In ICU 4.8.1 (standard for Ubuntu 12.* with PHP 5.3.10)

    With locale 'en', input of 100,1 returns "false"

Be sure to note your ICU version in phpinfo() to be sure you will get the expected output.

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Rakasch ¶

5 years ago

'en_EN':

basically the first part is the language and the second part the region:
'en_EN' - english, England
'en_US' - english, United States

You can lookup the language tags like 'en_EN' here:
https://datahub.io/core/language-codes
see "ietf-language-tags"