nl_langinfo() - 查询语言和区域设置信息 - php 字符串函数

乐乐1年前 (2023-11-21)阅读数 17#技术干货

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nl_langinfo()

(PHP 4 >= 4.1.0, PHP 5, PHP 7)

查询语言和区域设置信息

说明

nl_langinfo(int $item): string

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

参数

$item

nl_langinfo() - 查询语言和区域设置信息 - php 字符串函数

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

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 forstrftime()to represent time and date.
`D_FMT`	String that can be used as the format string forstrftime()to represent date.
`T_FMT`	String that can be used as the format string forstrftime()to represent time.
`T_FMT_AMPM`	String that can be used as the format string forstrftime()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 instrftime()).
`ERA_D_FMT`	Date in alternate era format(string can be used instrftime()).
`ERA_T_FMT`	Time in alternate era format(string can be used instrftime()).
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.

返回值

Returns the element as a string,orFALSEif$itemis not valid.

注释

Note:此函数未在 Windows 平台下实现。

参见

setlocale()设置地区信息
localeconv()Get numeric formatting information

The value MON_(1-12) has special behavior in Russian locale: it returns declinated month names, that can be used as part of a date string, but not on their own.
For instance instead of "Январь" (the proper nominative form) it returns "Января" (form declinated for use in dates).
There seems to be no way to get the nominative form of the month name - one has to use translations instead.

If you are looking for the stand-alone (nominative form) of a month, you may not be able to use nl_langinfo(), but with PHP 5.5 you can use something like:

Note that the format uses the ICU patterns, not the PHP date() patterns.

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