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# nl_langinfo

(PHP 4 >= 4.1.0, PHP 5)

nl_langinfo -- Query language and locale information

## Description

string nl_langinfo ( int item )

nl_langinfo() is used to access individual elements of the locale categories. Unlike localeconv(), which returns all of the elements, nl_langinfo() allows you to select any specific element.

If item is not valid, `FALSE` will be returned.

item may be an integer value of the element or the constant name of the element. The following is a list of constant names for item that may be used and their description. Some of these constants may not be defined or hold no value for certain locales.

表格 1. nl_langinfo Constants

Constant | Description
--- | ---
LC_TIME Category Constants
ABDAY_(1-7) | Abbreviated name of n-th day of the week.
DAY_(1-7) | Name of the n-th day of the week (DAY_1 = Sunday).
ABMON_(1-12) | Abbreviated name of the n-th month of the year.
MON_(1-12) | Name of the n-th month of the year.
AM_STR | String for Ante meridian.
PM_STR | String for Post meridian.
D_T_FMT | String that can be used as the format string for strftime() to represent time and date.
D_FMT | String that can be used as the format string for strftime() to represent date.
T_FMT | String that can be used as the format string for strftime() to represent time.
T_FMT_AMPM | String that can be used as the format string for strftime() to represent time in 12-hour format with ante/post meridian.
ERA | Alternate era.
ERA_YEAR | Year in alternate era format.
ERA_D_T_FMT | Date and time in alternate era format (string can be used in strftime()).
ERA_D_FMT | Date in alternate era format (string can be used in strftime()).
ERA_T_FMT | Time in alternate era format (string can be used in strftime()).
LC_MONETARY Category Constants
INT_CURR_SYMBOL | International currency symbol.
CURRENCY_SYMBOL | Local currency symbol.
CRNCYSTR | Same value as CURRENCY_SYMBOL.
MON_DECIMAL_POINT | Decimal point character.
MON_THOUSANDS_SEP | Thousands separator (groups of three digits).
MON_GROUPING | Like 'grouping' element.
POSITIVE_SIGN | Sign for positive values.
NEGATIVE_SIGN | Sign for negative values.
INT_FRAC_DIGITS | International fractional digits.
FRAC_DIGITS | Local fractional digits.
P_CS_PRECEDES | Returns 1 if CURRENCY_SYMBOL precedes a positive value.
P_SEP_BY_SPACE | Returns 1 if a space separates CURRENCY_SYMBOL from a positive value.
N_CS_PRECEDES | Returns 1 if CURRENCY_SYMBOL precedes a negative value.
N_SEP_BY_SPACE | Returns 1 if a space separates CURRENCY_SYMBOL from a negative value.

P_SIGN_POSN

- Returns 0 if parentheses surround the quantity and currency_symbol.

- Returns 1 if the sign string precedes the quantity and currency_symbol.

- Returns 2 if the sign string follows the quantity and currency_symbol.

- Returns 3 if the sign string immediately precedes the currency_symbol.

- Returns 4 if the sign string immediately follows the currency_symbol.

N_SIGN_POSN
LC_NUMERIC Category Constants
DECIMAL_POINT | Decimal point character.
RADIXCHAR | Same value as DECIMAL_POINT.
THOUSANDS_SEP | Separator character for thousands (groups of three digits).
THOUSEP | Same value as THOUSANDS_SEP.
GROUPING |
LC_MESSAGES Category Constants
YESEXPR | Regex string for matching 'yes' input.
NOEXPR | Regex string for matching 'no' input.
YESSTR | Output string for 'yes'.
NOSTR | Output string for 'no'.
LC_CTYPE Category Constants
CODESET | Return a string with the name of the character encoding.

> 注: 此函數不適用於 Windows 平台。

See also setlocale() and localeconv().

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