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<refentry xml:id="function.arsort" xmlns="http://docbook.org/ns/docbook">

<refnamediv>

<refname>arsort</refname>

<refpurpose>Trie un tableau en ordre décroissant et conserve l'association des index</refpurpose>

</refnamediv>

<refsect1 role="description">

&reftitle.description;

<methodsynopsis>

<type>true</type><methodname>arsort</methodname>

<methodparam><type>array</type><parameter role="reference">array</parameter></methodparam>

<methodparam choice="opt"><type>int</type><parameter>flags</parameter><initializer><constant>SORT_REGULAR</constant></initializer></methodparam>

</methodsynopsis>

<para>

Trie <parameter>array</parameter> sur place en ordre décroissant,

de telle manière que la corrélation entre les clés et les

valeurs soit conservée.

</para>

<para>

L'usage principal est lors de tri de tableaux

associatifs où l'ordre des éléments est important.

</para>

&note.sort-unstable;

&note.reset-index;

</refsect1>

<refsect1 role="parameters">

&reftitle.parameters;

<para>

<variablelist>

<varlistentry>

<term><parameter>array</parameter></term>

<listitem>

<para>

Le tableau d'entrée.

</para>

</listitem>

</varlistentry>

&sort.flags.parameter;

</variablelist>

</para>

</refsect1>

<refsect1 role="returnvalues">

&reftitle.returnvalues;

<para>

&return.true.always;

</para>

</refsect1>

<refsect1 role="changelog">

&reftitle.changelog;

<para>

<informaltable>

<tgroup cols="2">

<thead>

<row>

<entry>&Version;</entry>

<entry>&Description;</entry>

</row>

</thead>

<tbody>

&return.type.true;

</tbody>

</tgroup>

</informaltable>

</para>

</refsect1>

<refsect1 role="examples">

&reftitle.examples;

<para>

<example>

<title>Exemple avec <function>arsort</function></title>

<programlisting role="php">

<![CDATA[

<?php

$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");

arsort($fruits);

foreach ($fruits as $key => $val) {

echo "$key = $val\n";

}

?>

]]>

</programlisting>

&example.outputs;

<screen>

<![CDATA[

a = orange

d = lemon

b = banana

c = apple

]]>

</screen>

<para>

Les fruits ont été triés en ordre alphabétique

inverse, et leurs index respectifs ont été conservés.

</para>

</example>

</para>

</refsect1>

<refsect1 role="seealso">

&reftitle.seealso;

<simplelist>

<member><function>sort</function></member>

<member><function>asort</function></member>

<member>&seealso.array.sorting;</member>

</simplelist>

</refsect1>

</refentry>

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