PHP: nl_langinfo - Manual

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.