is-countable.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.is-countable" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>is_countable</refname>
  <refpurpose>
   Vérifie si le contenu de la variable est une valeur dénombrable
  </refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>is_countable</methodname>
   <methodparam><type>mixed</type><parameter>value</parameter></methodparam>
  </methodsynopsis>
  <para>
   Vérifie si le contenue de la variable est un tableau <type>array</type>
   ou un object qui implémente <classname>Countable</classname>
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>value</parameter></term>
     <listitem>
      <para>
       La variable à vérifier
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Retourne &true; si <parameter>value</parameter> est dénombrable, &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>7.3.0</entry>
      <entry>
       <function>is_countable</function> a été ajouté.
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Exemples avec <function>is_countable</function></title>
    <programlisting role="php">
<![CDATA[
<?php
var_dump(is_countable([1, 2, 3])); // bool(true)
var_dump(is_countable(new ArrayIterator(['foo', 'bar', 'baz']))); // bool(true)
var_dump(is_countable(new ArrayIterator())); // bool(true)
var_dump(is_countable(new stdClass())); // bool(false)

]]>
    </programlisting>
   </example>   
  </para>   
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>is_array</function></member>
    <member><function>is_object</function></member>
    <member><function>is_iterable</function></member>
    <member><function>is_bool</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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