PHP String nl_langinfo() Function
The nl_langinfo() function is in-built function of PHP. It is used to access the individual elements of the locale categories. This function allows us to select any element specifically. Unlike the localeconv() function which returns all the local formatting information, nl_langinfo() function returns the specific information.
Note: One important thing to notice about nl_langinfo() function is that – this function is not implemented on the Windows platform.
Syntax
The basic syntax of nl_langinfo() function of PHP is:
Parameter
This function has only one parameter, i.e.,
item (mandatory) – item is the only parameter of nl_langinfo() function which may be an integer type value of the element or a constant name of the element. There is a list of the following nl_langinfo constants with their description for the item that may be used in this function with the item parameter. Some of these constants may not be defined or do not hold any value for certain locales.
| Constant | Description |
|---|---|
| LC_TIME Category Constant | |
| ABDAY_(1-7) | Abbreviated name of all the days (nth days) of the week |
| DAY_(1-7) | Name of all the days of the week |
| ABMON_(1-12) | Abbreviated name of all the months of the year |
| MON_(1-12) | Name of all the months of the week |
| AM_STR | String for Ante meridian |
| PM_STR | String for Post meridian |
| D_T_FMT | String which can be used to represent time and date as the format string for strftime() function |
| D_FMT | String which can be used to represent the date as the format string for strftime() function |
| T_FMT | String which can be used to represent time as the format string for strftime() function |
| T_FMT_AMPN | String which can be used to represent the time in 12-hour format with ante/post meridian as a format string for strftime() function |
| ERA | Alternate era. |
| ERA_YEAR | Alternate era format of year |
| ERA_D_T_FMT | Alternate era format of date and time |
| ERA_D_FMT | Alternate era format of the date |
| ERA_T_FMT | Alternate era format of time |
| LC_MONETARY Category Constant | |
| INT_CURR_SYMBOL | International currency symbol, e.g., USD |
| CURRENCY_SYMBOL | Local currency symbol, e.g., $ |
| CRNCYSTR | Same value as CURRENCY_SYMBOL |
| MON_DECIMAL_POINT | It is a monetary decimal point character |
| MON_THOUSAND_SEP | Monetary thousands separator (three digits’ group) |
| MON_GROUPING | Like “grouping” element |
| POSITIVE_SIGN | +ive sign for positive values |
| NEGATIVE_SIGN | -ive sign for negative values |
| INT_FRAC_DIGITS | International fractional digits |
| FRAC_DIGITS | Local fractional digits |
| P_CS_PRECEDES | Returns TRUE (1) if CURRENCY_SYMBOL precedes a positive value and FALSE (0) if it is placed behind |
| P_SEP_BY_SPACE | Returns TRUE (1) if there is a space between CURRENCY_SYMBOL and positive value. |
| N_CS_PRECEDES | Returns TRUE (1) if CURRENCY_SYMBOL precedes a negative value and FALSE (0) if it is placed behind. |
| N_SEP_BY_SPACE | Returns TRUE (1) if there is a space between CURRENCY_SYMBOL and a negative value. |
| P_SIGN_POSN N_SIGN_POSN |
|
| LC_NUMERIC Category Constant | |
| DECIMAL_POINT | Decimal point character |
| RADIXCHAR | Same value as DECIMAT_POINT |
| THOUSAND_SEP | Separator character for thousands (Group of three digits) |
| THOUSEP | Same value as THOUSAND_SEP |
| GROUPING | |
| LC_MESSAGES Category Constant | |
| 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 Constant | |
| CODESET | It returns a string with the name of the character encoding. |
Value return by nl_langinfo() function
It returns the element as a string on success or returns FALSE if the item is invalid.