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archived-doc-fr/reference/classobj/functions/method-exists.xml
2026-02-28 22:24:35 +01:00

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<?xml version="1.0" encoding="utf-8"?>
<!-- EN-Revision: 3d8c79ee5c0dfb8dcb1f1474eb844763b9bb6cde Maintainer: yannick Status: ready -->
<!-- Reviewed: yes Maintainer: pmartin -->
<refentry xml:id="function.method-exists" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>method_exists</refname>
<refpurpose>Vérifie si la méthode existe pour une classe</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>method_exists</methodname>
<methodparam><type class="union"><type>object</type><type>string</type></type><parameter>object_or_class</parameter></methodparam>
<methodparam><type>string</type><parameter>method</parameter></methodparam>
</methodsynopsis>
<para>
Vérifie si la méthode existe pour l'objet
<parameter>object_or_class</parameter> fourni.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>object_or_class</parameter></term>
<listitem>
<para>
Une instance d'un objet ou le nom d'une classe
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>method</parameter></term>
<listitem>
<para>
Le nom de la méthode
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Retourne &true; si la méthode fournie par le paramètre
<parameter>method</parameter> a été définie pour l'objet
<parameter>object_or_class</parameter>, &false; sinon.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>7.4.0</entry>
<entry>
Les vérifications de classe portant sur les méthodes privées héritées renvoient désormais &false;.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Exemple avec <function>method_exists</function></title>
<programlisting role="php">
<![CDATA[
<?php
$directory = new Directory('.');
var_dump(method_exists($directory,'read'));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
bool(true)
]]>
</screen>
</example>
<example>
<title>Exemple avec <function>method_exists</function> en appel statique</title>
<programlisting role="php">
<![CDATA[
<?php
var_dump(method_exists('Directory','read'));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
bool(true)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
&note.uses-autoload;
<note>
<simpara>
La fonction <function>method_exists</function> ne peut pas détecter les méthodes
accessibles via la méthode magique
<link linkend="language.oop5.overloading.methods"><literal>__call</literal></link>.
</simpara>
</note>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>function_exists</function></member>
<member><function>is_callable</function></member>
<member><function>class_exists</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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