Php parse number from

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numfmt_parse

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

Parameters

The string to parse for the number.

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 in the string at which to begin parsing. On return, this value will hold the offset at which parsing ended.

Return Values

The value of the parsed number or false on error.

Examples

Example #1 numfmt_parse() example

$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» ;
?>

Example #2 OO example

$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» ;
?>

The above example will output:

User Contributed Notes 3 notes

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»

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.

Читайте также: Python enum in class

to parse English use this format: ‘en_EN’ . I had to guess. I have no idea where you would find these codes.

echo «

" ; 
$fmt = numfmt_create ( 'en_EN' , NumberFormatter :: DECIMAL ); 
$num = "1,234,567.891" ;
echo numfmt_parse ( $fmt , $num ). "\n" ;
echo numfmt_parse ( $fmt , $num , NumberFormatter :: TYPE_INT32 ). "\n" ;
echo "

» ;
?>

If this doesn’t work well all I can say is it shouldn’t work because it makes no sense that you would repeat the code twice «en and EN» in one code. Stuff that makes no sense is hard to guess. I couldn’t find a page that has these codes either. I guess documentation is bound to be incomplete since it’s so voluminous. Documentation has a language and syntax unto itself yet there are no tutorials on understanding documentation.

Источник

NumberFormatter::parse

Разобрать строку на число,используя текущие правила форматирования.

Parameters

Строка,которую нужно разобрать для получения числа.

Используемый тип форматирования . По умолчанию используется NumberFormatter::TYPE_DOUBLE .

Смещение в строке,с которой начинается синтаксический анализ.При возврате это значение будет удерживать смещение,на котором парсинг закончился.

Return Values

Значение анализируемого числа или false в случае ошибки.

Examples

Пример # 1 numfmt_parse () Пример

 $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"; ?>

Пример # 2 Пример объектно-ориентированного программирования

 $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"; ?>

Выводится приведенный выше пример:

numfmt_parse_currency

Parse a string into a float and a currency using the current formatter.

Parameters

Parameter to receive the currency name (3-letter ISO 4217 currency code).

Offset in the string at which to begin parsing. On return, this value will hold the offset at which parsing ended.

Return Values

The parsed numeric value or false on error.

Examples

Example #1 numfmt_parse_currency() example

$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» ;
?>

Example #2 OO example

$fmt = new NumberFormatter ( ‘de_DE’ , NumberFormatter :: CURRENCY );
$num = «1.234.567,89\xc2\xa0$» ;
echo «We have » . $fmt -> parseCurrency ( $num , $curr ). » in $curr \n» ;
?>

The above example will output:

User Contributed Notes 1 note

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.

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.

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.

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.

Источник

Php parse number from