doc-fr/reference/mysql/functions/mysql-list-fields.xml

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<refentry xml:id="function.mysql-list-fields" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>mysql_list_fields</refname>
  <refpurpose>Liste les champs d'une table MySQL</refpurpose>
 </refnamediv>

 <refsynopsisdiv>
  <warning>
   &mysql.alternative.note.5-4-0;
   <simplelist role="alternatives">
    <member>Requête SQL : <literal>SHOW COLUMNS FROM sometable</literal></member>
   </simplelist>
  </warning>
 </refsynopsisdiv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>resource</type><methodname>mysql_list_fields</methodname>
   <methodparam><type>string</type><parameter>database_name</parameter></methodparam>
   <methodparam><type>string</type><parameter>table_name</parameter></methodparam>
   <methodparam choice="opt"><type>resource</type><parameter>link_identifier</parameter><initializer>NULL</initializer></methodparam>
  </methodsynopsis>
  <para>
   Liste les champs de la table MySQL spécifiée.
  </para>
  <para>
   La fonction <function>mysql_list_fields</function> est obsolète.
   Il est préférable d'utiliser la fonction <function>mysql_query</function>
   avec comme requête <literal>SHOW COLUMNS FROM table [LIKE 'name']</literal>
   à la place.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>database_name</parameter></term>
     <listitem>
      <para>
       Le nom de la base de données qui va être interrogée.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>table_name</parameter></term>
     <listitem>
      <para>
       Le nom de la table qui va être interrogée.
      </para>
     </listitem>
    </varlistentry>
    &mysql.linkid.description;
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Une ressource de pointeurs de résultats en cas de succès, ou &false; si une
   erreur survint.
  </para>
  <para>
   Le résultat retourné peut être utilisé avec les fonctions
   <function>mysql_field_flags</function>,
   <function>mysql_field_len</function>,
   <function>mysql_field_name</function>&listendand;
   <function>mysql_field_type</function>.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Exemple d'alternative à <function>mysql_list_fields</function></title>
    <programlisting role="php">
<![CDATA[
<?php
$result = mysql_query("SHOW COLUMNS FROM sometable");
if (!$result) {
   echo 'Impossible d\'exécuter la requête : ' . mysql_error();
   exit;
}
if (mysql_num_rows($result) > 0) {
   while ($row = mysql_fetch_assoc($result)) {
      print_r($row);
   }
}
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
Array
(
   [Field] => id
   [Type] => int(7)
   [Null] =>  
   [Key] => PRI
   [Default] =>
   [Extra] => auto_increment
)
Array
(
   [Field] => email
   [Type] => varchar(100)
   [Null] =>
   [Key] =>
   [Default] =>
   [Extra] =>
)
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="notes">
  &reftitle.notes;
  <note>
   <para>
    &info.deprecated.alias;
    <function>mysql_listfields</function>
   </para>
  </note>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>mysql_field_flags</function></member>
    <member><function>mysql_info</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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