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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.nl-langinfo" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>nl_langinfo</refname>
<refpurpose>Query language and locale information</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type class="union"><type>string</type><type>false</type></type><methodname>nl_langinfo</methodname>
<methodparam><type>int</type><parameter>item</parameter></methodparam>
</methodsynopsis>
<para>
<function>nl_langinfo</function> is used to access individual elements of
the locale categories. Unlike <function>localeconv</function>, which
returns all of the elements, <function>nl_langinfo</function> allows you
to select any specific element.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>item</parameter></term>
<listitem>
<para>
<parameter>item</parameter> may be an integer value of the element or the
constant name of the element. The following is a list of constant names
for <parameter>item</parameter> that may be used and their description.
Some of these constants may not be defined or hold no value for certain
locales.
<table>
<title>nl_langinfo Constants</title>
<tgroup cols="2">
<colspec colname="c1"/>
<colspec colname="c2"/>
<thead>
<row>
<entry>Constant</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry namest="c1" nameend="c2" align="center"><emphasis><constant>LC_TIME</constant> Category Constants</emphasis></entry>
</row>
<row>
<entry><constant>ABDAY_<replaceable>(1-7)</replaceable></constant></entry>
<entry>Abbreviated name of n-th day of the week.</entry>
</row>
<row>
<entry><constant>DAY_<replaceable>(1-7)</replaceable></constant></entry>
<entry>Name of the n-th day of the week (DAY_1 = Sunday).</entry>
</row>
<row>
<entry><constant>ABMON_<replaceable>(1-12)</replaceable></constant></entry>
<entry>Abbreviated name of the n-th month of the year.</entry>
</row>
<row>
<entry><constant>MON_<replaceable>(1-12)</replaceable></constant></entry>
<entry>Name of the n-th month of the year.</entry>
</row>
<row>
<entry><constant>AM_STR</constant></entry>
<entry>String for Ante meridian.</entry>
</row>
<row>
<entry><constant>PM_STR</constant></entry>
<entry>String for Post meridian.</entry>
</row>
<row>
<entry><constant>D_T_FMT</constant></entry>
<entry>String that can be used as the format string for <function>strftime</function> to represent time and date.</entry>
</row>
<row>
<entry><constant>D_FMT</constant></entry>
<entry>String that can be used as the format string for <function>strftime</function> to represent date.</entry>
</row>
<row>
<entry><constant>T_FMT</constant></entry>
<entry>String that can be used as the format string for <function>strftime</function> to represent time.</entry>
</row>
<row>
<entry><constant>T_FMT_AMPM</constant></entry>
<entry>String that can be used as the format string for <function>strftime</function> to represent time in 12-hour format with ante/post meridian.</entry>
</row>
<row>
<entry><constant>ERA</constant></entry>
<entry>Alternate era.</entry>
</row>
<row>
<entry><constant>ERA_YEAR</constant></entry>
<entry>Year in alternate era format.</entry>
</row>
<row>
<entry><constant>ERA_D_T_FMT</constant></entry>
<entry>Date and time in alternate era format (string can be used in <function>strftime</function>).</entry>
</row>
<row>
<entry><constant>ERA_D_FMT</constant></entry>
<entry>Date in alternate era format (string can be used in <function>strftime</function>).</entry>
</row>
<row>
<entry><constant>ERA_T_FMT</constant></entry>
<entry>Time in alternate era format (string can be used in <function>strftime</function>).</entry>
</row>
<row>
<entry namest="c1" nameend="c2" align="center"><emphasis><constant>LC_MONETARY</constant> Category Constants</emphasis></entry>
</row>
<row>
<entry><constant>INT_CURR_SYMBOL</constant></entry>
<entry>International currency symbol.</entry>
</row>
<row>
<entry><constant>CURRENCY_SYMBOL</constant></entry>
<entry>Local currency symbol.</entry>
</row>
<row>
<entry><constant>CRNCYSTR</constant></entry>
<entry>Same value as <constant>CURRENCY_SYMBOL</constant>.</entry>
</row>
<row>
<entry><constant>MON_DECIMAL_POINT</constant></entry>
<entry>Decimal point character.</entry>
</row>
<row>
<entry><constant>MON_THOUSANDS_SEP</constant></entry>
<entry>Thousands separator (groups of three digits).</entry>
</row>
<row>
<entry><constant>MON_GROUPING</constant></entry>
<entry>Like <literal>"grouping"</literal> element.</entry>
</row>
<row>
<entry><constant>POSITIVE_SIGN</constant></entry>
<entry>Sign for positive values.</entry>
</row>
<row>
<entry><constant>NEGATIVE_SIGN</constant></entry>
<entry>Sign for negative values.</entry>
</row>
<row>
<entry><constant>INT_FRAC_DIGITS</constant></entry>
<entry>International fractional digits.</entry>
</row>
<row>
<entry><constant>FRAC_DIGITS</constant></entry>
<entry>Local fractional digits.</entry>
</row>
<row>
<entry><constant>P_CS_PRECEDES</constant></entry>
<entry>Returns 1 if <constant>CURRENCY_SYMBOL</constant> precedes a positive value.</entry>
</row>
<row>
<entry><constant>P_SEP_BY_SPACE</constant></entry>
<entry>Returns 1 if a space separates <constant>CURRENCY_SYMBOL</constant> from a positive value.</entry>
</row>
<row>
<entry><constant>N_CS_PRECEDES</constant></entry>
<entry>Returns 1 if <constant>CURRENCY_SYMBOL</constant> precedes a negative value.</entry>
</row>
<row>
<entry><constant>N_SEP_BY_SPACE</constant></entry>
<entry>Returns 1 if a space separates <constant>CURRENCY_SYMBOL</constant> from a negative value.</entry>
</row>
<row>
<entry><constant>P_SIGN_POSN</constant></entry>
<entry morerows="1" valign="middle">
<itemizedlist>
<listitem>
<simpara>
Returns 0 if parentheses surround the quantity and <constant>CURRENCY_SYMBOL</constant>.
</simpara>
</listitem>
<listitem>
<simpara>
Returns 1 if the sign string precedes the quantity and <constant>CURRENCY_SYMBOL</constant>.
</simpara>
</listitem>
<listitem>
<simpara>
Returns 2 if the sign string follows the quantity and <constant>CURRENCY_SYMBOL</constant>.
</simpara>
</listitem>
<listitem>
<simpara>
Returns 3 if the sign string immediately precedes the <constant>CURRENCY_SYMBOL</constant>.
</simpara>
</listitem>
<listitem>
<simpara>
Returns 4 if the sign string immediately follows the <constant>CURRENCY_SYMBOL</constant>.
</simpara>
</listitem>
</itemizedlist>
</entry>
</row>
<row>
<entry><constant>N_SIGN_POSN</constant></entry>
</row>
<row>
<entry namest="c1" nameend="c2" align="center"><emphasis><constant>LC_NUMERIC</constant> Category Constants</emphasis></entry>
</row>
<row>
<entry><constant>DECIMAL_POINT</constant></entry>
<entry>Decimal point character.</entry>
</row>
<row>
<entry><constant>RADIXCHAR</constant></entry>
<entry>Same value as <constant>DECIMAL_POINT</constant>.</entry>
</row>
<row>
<entry><constant>THOUSANDS_SEP</constant></entry>
<entry>Separator character for thousands (groups of three digits).</entry>
</row>
<row>
<entry><constant>THOUSEP</constant></entry>
<entry>Same value as <constant>THOUSANDS_SEP</constant>.</entry>
</row>
<row>
<entry><constant>GROUPING</constant></entry>
<entry/>
</row>
<row>
<entry namest="c1" nameend="c2" align="center"><emphasis><constant>LC_MESSAGES</constant> Category Constants</emphasis></entry>
</row>
<row>
<entry><constant>YESEXPR</constant></entry>
<entry>Regex string for matching <literal>"yes"</literal> input.</entry>
</row>
<row>
<entry><constant>NOEXPR</constant></entry>
<entry>Regex string for matching <literal>"no"</literal> input.</entry>
</row>
<row>
<entry><constant>YESSTR</constant></entry>
<entry>Output string for <literal>"yes"</literal>.</entry>
</row>
<row>
<entry><constant>NOSTR</constant></entry>
<entry>Output string for <literal>"no"</literal>.</entry>
</row>
<row>
<entry namest="c1" nameend="c2" align="center"><emphasis><constant>LC_CTYPE</constant> Category Constants</emphasis></entry>
</row>
<row>
<entry><constant>CODESET</constant></entry>
<entry>Return a string with the name of the character encoding.</entry>
</row>
</tbody>
</tgroup>
</table>
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns the element as a string, or &false; if <parameter>item</parameter>
is not valid.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>nl_langinfo</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
var_dump(nl_langinfo(CODESET));
var_dump(nl_langinfo(YESEXPR));
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
string(14) "ANSI_X3.4-1968"
string(5) "^[yY]"
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
¬e.no-windows;
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>setlocale</function></member>
<member><function>localeconv</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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