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doc-fr/reference/apcu/functions/apcu-cas.xml
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George Peter Banyard be9f02ea04 Fix RevCheck for APCU docs
2022-06-29 20:16:59 +01:00

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XML

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.apcu-cas" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>apcu_cas</refname>
<refpurpose>Remplace une ancienne valeur par une nouvelle</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>apcu_cas</methodname>
<methodparam><type>string</type><parameter>key</parameter></methodparam>
<methodparam><type>int</type><parameter>old</parameter></methodparam>
<methodparam><type>int</type><parameter>new</parameter></methodparam>
</methodsynopsis>
<para>
<function>apcu_cas</function> remplace une valeur entière déjà existante, si la
valeur du paramètre <parameter>old</parameter> correspond à celle actuellement
stockée, par la valeur du paramètre <parameter>new</parameter>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<variablelist>
<varlistentry>
<term><parameter>key</parameter></term>
<listitem>
<para>
La clé de la valeur à remplacer.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>old</parameter></term>
<listitem>
<para>
L'ancienne valeur (la valeur actuellement stockée).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>new</parameter></term>
<listitem>
<para>
La nouvelle valeur.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example>
<title>Un exemple avec <function>apcu_cas</function></title>
<programlisting role="php">
<![CDATA[
<?php
apcu_store('foobar', 2);
echo '$foobar = 2', PHP_EOL;
echo '$foobar == 1 ? 2 : 1 = ', (apcu_cas('foobar', 1, 2) ? 'ok' : 'fail'), PHP_EOL;
echo '$foobar == 2 ? 1 : 2 = ', (apcu_cas('foobar', 2, 1) ? 'ok' : 'fail'), PHP_EOL;
echo '$foobar = ', apcu_fetch('foobar'), PHP_EOL;
echo '$f__bar == 1 ? 2 : 1 = ', (apcu_cas('f__bar', 1, 2) ? 'ok' : 'fail'), PHP_EOL;
apcu_store('perfection', 'xyz');
echo '$perfection == 2 ? 1 : 2 = ', (apcu_cas('perfection', 2, 1) ? 'ok' : 'epic fail'), PHP_EOL;
echo '$foobar = ', apcu_fetch('foobar'), PHP_EOL;
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
$foobar = 2
$foobar == 1 ? 2 : 1 = fail
$foobar == 2 ? 1 : 2 = ok
$foobar = 1
$f__bar == 1 ? 2 : 1 = fail
$perfection == 2 ? 1 : 2 = epic fail
$foobar = 1
]]>
</screen>
</example>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<simplelist>
<member><function>apcu_dec</function></member>
<member><function>apcu_store</function></member>
</simplelist>
</refsect1>
</refentry>
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