archived-doc-fr/reference/pgsql/functions/pg-meta-data.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.pg-meta-data" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>pg_meta_data</refname>
  <refpurpose>
   Lit les métadonnées de la table PostgreSQL
  </refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type class="union"><type>array</type><type>false</type></type><methodname>pg_meta_data</methodname>
   <methodparam><type>PgSql\Connection</type><parameter>connection</parameter></methodparam>
   <methodparam><type>string</type><parameter>table_name</parameter></methodparam>
   <methodparam choice="opt"><type>bool</type><parameter>extended</parameter><initializer>&false;</initializer></methodparam>
  </methodsynopsis>
  <para>
   <function>pg_meta_data</function> retourne la définition de la table 
   <literal>table_name</literal> sous forme de tableau.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>connection</parameter></term>
     <listitem>
      &pgsql.parameter.connection;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>table_name</parameter></term>
     <listitem>
      <para>
       Le nom de la table.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>extended</parameter></term>
     <listitem>
      <para>
       Drapeau pour retourner les méta-données étendues. Par défaut,
       vaut &false;.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Un &array; de la table de définition, &return.falseforfailure;.
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     &pgsql.changelog.connection-object;
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>
 
 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Récupération des métadonnées d'une table</title>
    <programlisting role="php">
<![CDATA[
<?php
  $dbconn = pg_connect("dbname=publisher") or die("Connexion impossible");

  $meta = pg_meta_data($dbconn,'auteurs');
  if (is_array ($meta)) {
       echo '<pre>';
       var_dump ($meta);
       echo '</pre>';
  }
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
array(3) {
["auteur"]=>
array(5) {
  ["num"]=>
  int(1)
  ["type"]=>
  string(7) "varchar"
  ["len"]=>
  int(-1)
  ["not null"]=>
  bool(false)
  ["has default"]=>
  bool(false)
}
["annee"]=>
array(5) {
  ["num"]=>
  int(2)
  ["type"]=>
  string(4) "int2"
  ["len"]=>
  int(2)
  ["not null"]=>
  bool(false)
  ["has default"]=>
  bool(false)
}
["titre"]=>
array(5) {
  ["num"]=>
  int(3)
  ["type"]=>
  string(7) "varchar"
  ["len"]=>
  int(-1)
  ["not null"]=>
  bool(false)
  ["has default"]=>
  bool(false)
}
}
]]>
    </screen>
   </example> 
  </para>
 </refsect1>

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