mysql-fetch-lengths.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: b95d28e6ec86e4a71e012737d36ebdc1cf009180 Maintainer: yannick Status: ready -->
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<refentry xml:id="function.mysql-fetch-lengths" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>mysql_fetch_lengths</refname>
  <refpurpose>
   Retourne la taille de chaque colonne d'une ligne de résultat MySQL
  </refpurpose>
 </refnamediv>

 <refsynopsisdiv>
  <warning>
   &mysql.alternative.note;
   <simplelist role="alternatives">
    <member><function>mysqli_fetch_lengths</function></member>
    <member><methodname>PDOStatement::getColumnMeta</methodname></member>
   </simplelist>
  </warning>
 </refsynopsisdiv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type class="union"><type>array</type><type>false</type></type><methodname>mysql_fetch_lengths</methodname>
   <methodparam><type>resource</type><parameter>result</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>mysql_fetch_lengths</function> retourne un tableau avec
   la taille de chaque colonne de la dernière ligne retournée
   par <function>mysql_fetch_row</function>.
  </para>
  <para>
   <function>mysql_fetch_lengths</function> stocke les tailles de chaque colonne
   de la dernière ligne retournée par 
   <function>mysql_fetch_row</function>,
   <function>mysql_fetch_assoc</function>,
   <function>mysql_fetch_array</function> et
   <function>mysql_fetch_object</function> dans un tableau, en commençant à la
   position 0.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    &mysql.result.description;
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Un <type>array</type> de taille, en cas de succès&return.falseforfailure;.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Exemple avec <function>mysql_fetch_lengths</function></title>
    <programlisting role="php">
<![CDATA[
<?php
$result = mysql_query("SELECT id,email FROM people WHERE id = '42'");
if (!$result) {
   echo 'Impossible d\'exécuter la requête : ' . mysql_error();
   exit;
}
$row     = mysql_fetch_assoc($result);
$lengths = mysql_fetch_lengths($result);

print_r($row);
print_r($lengths);
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
Array
(
   [id] => 42
   [email] => user@example.com
)
Array
(
   [0] => 2
   [1] => 16
)
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>mysql_field_len</function></member>
    <member><function>mysql_fetch_row</function></member>
    <member><function>strlen</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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