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<title>&class.theclass; <classname>SplFixedArray</classname></title>

<titleabbrev>SplFixedArray</titleabbrev>

<partintro>

<!-- {{{ splfixedarray intro -->

<section xml:id="splfixedarray.intro">

&reftitle.intro;

<para>

La classe <classname>SplFixedArray</classname> fournit les fonctionnalités

principales d'un tableau. La différence majeure entre un objet

<classname>SplFixedArray</classname> et un &array; standard de PHP est

que <classname>SplFixedArray</classname> doit être redimensionné manuellement, et

n'utilise que des &integer; dans cette plage pour les index. L'avantage est qu'il utilise

moins de mémoire qu'un &array; standard.

</para>

</section>

<!-- }}} -->

<section xml:id="splfixedarray.synopsis">

&reftitle.classsynopsis;

<!-- {{{ Synopsis -->

<classsynopsis class="class">

<ooclass>

<classname>SplFixedArray</classname>

</ooclass>

<oointerface>

<modifier>implements</modifier>

<interfacename>IteratorAggregate</interfacename>

</oointerface>

<oointerface>

<interfacename>ArrayAccess</interfacename>

</oointerface>

<oointerface>

<interfacename>Countable</interfacename>

</oointerface>

<oointerface>

<interfacename>JsonSerializable</interfacename>

</oointerface>

<classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>

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<xi:fallback/>

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</classsynopsis>

</section>

<section role="changelog">

&reftitle.changelog;

<informaltable>

<tgroup cols="2">

<thead>

<row>

<entry>&Version;</entry>

<entry>&Description;</entry>

</row>

</thead>

<tbody>

<row>

<entry>8.2.0</entry>

<entry>

Les méthodes magiques <methodname>SplFixedArray::__serialize</methodname>

et <methodname>SplFixedArray::__unserialize</methodname>

ont été ajoutées à <classname>SplFixedArray</classname>.

</entry>

</row>

<row>

<entry>8.1.0</entry>

<entry>

La classe <classname>SplFixedArray</classname> implémente désormais <interfacename>JsonSerializable</interfacename>.

</entry>

</row>

<row>

<entry>8.0.0</entry>

<entry>

La classe <classname>SplFixedArray</classname> implémente désormais <interfacename>IteratorAggregate</interfacename>.

Auparavant, <interfacename>Iterator</interfacename> était implémentée.

</entry>

</row>

</tbody>

</tgroup>

</informaltable>

</section>

<!-- {{{ splfixedarray examples -->

<section xml:id="splfixedarray.examples">

&reftitle.examples;

<para>

<example>

<title>Exemple avec <classname>SplFixedArray</classname></title>

<programlisting role="php">

<![CDATA[

<?php

// Initialisation d'un tableau avec une taille fixe

$array = new SplFixedArray(5);

$array[1] = 2;

$array[4] = "foo";

var_dump($array[0]); // NULL

var_dump($array[1]); // int(2)

var_dump($array["4"]); // string(3) "foo"

// Augmentation de la taille à 10

$array->setSize(10);

$array[9] = "asdf";

// Réduction de taille de 2

$array->setSize(2);

// Les lignes suivantes émettent une RuntimeException : index invalide ou hors de l'intervalle

try {

var_dump($array["non-numeric"]);

} catch(RuntimeException $re) {

echo "RuntimeException : ".$re->getMessage()."\n";

}

try {

var_dump($array[-1]);

} catch(RuntimeException $re) {

echo "RuntimeException : ".$re->getMessage()."\n";

}

try {

var_dump($array[5]);

} catch(RuntimeException $re) {

echo "RuntimeException : ".$re->getMessage()."\n";

}

?>

]]>

</programlisting>

&example.outputs;

<screen>

<![CDATA[

NULL

int(2)

string(3) "foo"

RuntimeException: Index invalid or out of range

RuntimeException: Index invalid or out of range

RuntimeException: Index invalid or out of range

]]>

</screen>

</example>

</para>

</section>

<!-- }}} -->

</partintro>

&reference.spl.entities.splfixedarray;

</reference>

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