mirror of
https://github.com/macintoshplus/doc-fr.git
synced 2026-04-25 01:28:02 +02:00
Damien Seguy
a166458dac
git-svn-id: https://svn.php.net/repository/phpdoc/fr/trunk@277723 c90b9560-bf6c-de11-be94-00142212c4b1
127 lines
2.9 KiB
XML
127 lines
2.9 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.16 $ -->
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<!-- EN-Revision: 1.14 Maintainer: yannick Status: ready -->
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<!-- Reviewed: yes -->
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<refentry xml:id="function.srand" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>srand</refname>
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<refpurpose>Initialise le générateur de nombres aléatoires</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>void</type><methodname>srand</methodname>
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<methodparam choice="opt"><type>int</type><parameter>seed</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>srand</function> initialise le générateur de
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nombres aléatoires avec <parameter>seed</parameter>,
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ou avec une valeur aléatoire si aucun paramètre
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<parameter>seed</parameter> n'est fourni.
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</para>
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¬e.randomseed;
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>seed</parameter></term>
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<listitem>
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<para>
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Valeur d'initialisation, optionnelle
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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&return.void;
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</para>
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</refsect1>
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<refsect1 role="changelog">
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&reftitle.changelog;
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<para>
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<informaltable>
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<tgroup cols="2">
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<thead>
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<row>
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<entry>&Version;</entry>
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<entry>&Description;</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>Depuis la version 4.2.0</entry>
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<entry>
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Le paramètre <parameter>seed</parameter> est devenu optionnel
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et vaut, par défaut, une valeur aléatoire si omis.
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title>Exemple avec <function>srand</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// initialise avec les microsecondes
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function make_seed()
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{
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list($usec, $sec) = explode(' ', microtime());
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return (float) $sec + ((float) $usec * 100000);
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}
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srand(make_seed());
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$randval = rand();
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>rand</function></member>
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<member><function>getrandmax</function></member>
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<member><function>mt_srand</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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--> |