doc-fr/reference/spl/arrayobject/uasort.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="arrayobject.uasort" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>ArrayObject::uasort</refname>
  <refpurpose>Trie les éléments avec une fonction utilisateur</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis role="ArrayObject">
   <modifier>public</modifier> <type>true</type><methodname>ArrayObject::uasort</methodname>
   <methodparam><type>callable</type><parameter>callback</parameter></methodparam>
  </methodsynopsis>
  <para>
   Cette fonction trie les éléments tout en conservant leur
   correlation avec la clé associée, en utilisant une fonction
   de comparaison utilisateur.
  </para>
  <para>
   Cette fonction sert lors du tri de tableaux associatifs, où
   l'ordre des éléments est important.
  </para>
  &note.sort-unstable;
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>callback</parameter></term>
     <listitem>
      &sort.callback.description;
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.true.always;
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <para>
   <informaltable>
    <tgroup cols="2">
     <thead>
      <row>
       <entry>&Version;</entry>
       <entry>&Description;</entry>
      </row>
     </thead>
     <tbody>
      &return.type.true;
     </tbody>
    </tgroup>
   </informaltable>
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Exemple avec <function>ArrayObject::uasort</function></title>
    <programlisting role="php">
<![CDATA[
<?php
// Fonction de comparaison
function cmp($a, $b) {
    if ($a == $b) {
        return 0;
    }
    return ($a < $b) ? -1 : 1;
}

// Les tableaux à trier
$array = array('a' => 4, 'b' => 8, 'c' => -1, 'd' => -9, 'e' => 2, 'f' => 5, 'g' => 3, 'h' => -4);
$arrayObject = new ArrayObject($array);
print_r($arrayObject);

// Trie et affiche le tableau
$arrayObject->uasort('cmp');
print_r($arrayObject);
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
ArrayObject Object
(
    [storage:ArrayObject:private] => Array
        (
            [a] => 4
            [b] => 8
            [c] => -1
            [d] => -9
            [e] => 2
            [f] => 5
            [g] => 3
            [h] => -4
        )

)
ArrayObject Object
(
    [storage:ArrayObject:private] => Array
        (
            [d] => -9
            [h] => -4
            [c] => -1
            [e] => 2
            [g] => 3
            [a] => 4
            [f] => 5
            [b] => 8
        )

)
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><methodname>ArrayObject::asort</methodname></member>
    <member><methodname>ArrayObject::ksort</methodname></member>
    <member><methodname>ArrayObject::natsort</methodname></member>
    <member><methodname>ArrayObject::natcasesort</methodname></member>
    <member><methodname>ArrayObject::uksort</methodname></member>
    <member><function>uasort</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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