archived-doc-fr/reference/strings/functions/strnatcmp.xml

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<refentry xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://docbook.org/ns/docbook" xml:id="function.strnatcmp">
 <refnamediv>
  <refname>strnatcmp</refname>
  <refpurpose>Comparaison de chaînes avec l'algorithme d'"ordre naturel"</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>strnatcmp</methodname>
   <methodparam><type>string</type><parameter>string1</parameter></methodparam>
   <methodparam><type>string</type><parameter>string2</parameter></methodparam>
  </methodsynopsis>
  <para>
   Implémente l'algorithme de comparaison qui ordonne les chaînes tel qu'un
   homme le ferait. Il est à noter que cette comparaison est sensible à la casse.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>string1</parameter></term>
     <listitem>
      <para>
       La première chaîne.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>string2</parameter></term>
     <listitem>
      <para>
       La seconde chaîne.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  &strings.comparison.return;
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     &standard.changelog.binary-safe-string-comparison;
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   Un exemple de la différence de traitement avec l'algorithme standard
   est présenté ci-dessous :
  <example>
   <title><function>strcmp</function></title>
    <programlisting role="php">
<![CDATA[
<?php
$arr1 = $arr2 = array("img12.png", "img10.png", "img2.png", "img1.png");
echo "Tri de chaînes standard\n";
usort($arr1, "strcmp");
print_r($arr1);
echo "\nTri de chaînes \"ordre naturel\"\n";
usort($arr2, "strnatcmp");
print_r($arr2);
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
Tri de chaînes standard
Array
(
    [0] => img1.png
    [1] => img10.png
    [2] => img12.png
    [3] => img2.png
)

Tri de chaînes "ordre naturel"
Array
(
    [0] => img1.png
    [1] => img2.png
    [2] => img10.png
    [3] => img12.png
)
]]>
    </screen>
   </example>
   Pour plus de détails, se reporter à
   <link xlink:href="&url.strnatcmp;"><literal>Natural Order String
     Comparison</literal></link> de Martin Pool (en anglais).
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>preg_match</function></member>
    <member><function>strcasecmp</function></member>
    <member><function>substr</function></member>
    <member><function>stristr</function></member>
    <member><function>strcmp</function></member>
    <member><function>strncmp</function></member>
    <member><function>strncasecmp</function></member>
    <member><function>strnatcasecmp</function></member>
    <member><function>strstr</function></member>
    <member><function>natsort</function></member>
    <member><function>natcasesort</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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