(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
NumberFormatter::parse -- numfmt_parse — Parse a number
面向对象风格
$string, int $type = NumberFormatter::TYPE_DOUBLE, int &$offset = null): int|float|false过程化风格
$formatter,$string,$type = NumberFormatter::TYPE_DOUBLE,&$offset = nullParse a string into a number using the current formatter rules.
formatterNumberFormatter object.
stringThe 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.
offsetOffset in the string at which to begin parsing. On return, this value will hold the offset at which parsing ended.
The value of the parsed number or false on error.
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
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 1001In 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.'en_EN':basically the first part is the language and the second part the region:'en_EN' - english, England'en_US' - english, United StatesYou can lookup the language tags like 'en_EN' here:https://datahub.io/core/language-codessee "ietf-language-tags"