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?>
<div id="function.mysql-drop-db" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">mysql_drop_db</h1>
  <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">mysql_drop_db</span> &mdash; <span class="dc-title">Efface une base de données MySQL</span></p>

 </div>

 <div id="function.mysql-drop-db-refsynopsisdiv">
  <div class="warning"><strong class="warning">Avertissement</strong>
   <p class="para">Cette fonction était obsolète
en PHP 4.3.0, et la totalité de <a href="book.mysql.php" class="link">l&#039;extension original MySQL</a> a été supprimée en PHP 7.0.0.
À la place, vous pouvez utiliser soit l&#039;extension <a href="book.mysqli.php" class="link">MySQLi</a>, soit l&#039;extension
<a href="ref.pdo-mysql.php" class="link">PDO_MySQL</a>. Voir aussi <a href="mysqlinfo.api.choosing.php" class="link">MySQL : choisir
une API</a> du guide. Alternatives à cette fonction :</p>
   <ul class="simplelist">
    <li>Exécute une requête <code class="literal">DROP DATABASE</code></li>
   </ul>
  </div>
 </div>

 <div class="refsect1 description" id="refsect1-function.mysql-drop-db-description">
  <h3 class="title">Description</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>mysql_drop_db</strong></span>(<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$database_name</code></span>, <span class="methodparam"><span class="type"><a href="language.types.resource.php" class="type resource">resource</a></span> <code class="parameter">$link_identifier</code><span class="initializer"> = NULL</span></span>): <span class="type"><a href="language.types.boolean.php" class="type bool">bool</a></span></div>

  <p class="simpara">
   <span class="function"><strong>mysql_drop_db()</strong></span> essaie d&#039;effacer la base
   de données <code class="parameter">database_name</code> complète
   sur le serveur associé à la ressource de connexion
   <code class="parameter">link_identifier</code>.
   La fonction <span class="function"><strong>mysql_drop_db()</strong></span> est obsolète. Il est
   préférable d&#039;utiliser <span class="function"><a href="function.mysql-query.php" class="function">mysql_query()</a></span> avec la requête
   <code class="literal">DROP DATABASE</code> à la place.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.mysql-drop-db-parameters">
  <h3 class="title">Liste de paramètres</h3>
  <dl>
   
    <dt><code class="parameter">database_name</code></dt>
    <dd>
     <span class="simpara">
      Le nom de la base de données à effacer.
     </span>
    </dd>
   
   
<dt><code class="parameter">link_identifier</code></dt><dd><p class="para">
 La connexion MySQL.
 S&#039;il n&#039;est pas spécifié, la dernière connexion ouverte avec la fonction
 <span class="function"><a href="function.mysql-connect.php" class="function">mysql_connect()</a></span> sera utilisée. Si une telle connexion
 n&#039;est pas trouvée, la fonction tentera d&#039;ouvrir une connexion, comme
 si la fonction <span class="function"><a href="function.mysql-connect.php" class="function">mysql_connect()</a></span> avait été appelée sans argument.
 Si aucune connexion n&#039;est trouvée ou établie, une alerte de niveau
 <strong><code><a href="errorfunc.constants.php#constant.e-warning">E_WARNING</a></code></strong> sera générée.
</p></dd>
  </dl>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.mysql-drop-db-returnvalues">
  <h3 class="title">Valeurs de retour</h3>
  <p class="simpara">
   Cette fonction retourne <strong><code><a href="reserved.constants.php#constant.true">true</a></code></strong> en cas de succès ou <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong> si une erreur survient.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.mysql-drop-db-examples">
  <h3 class="title">Exemples</h3>
  <div class="example" id="example-1">
   <p><strong>Exemple #1 Exemple avec <span class="function"><strong>mysql_drop_db()</strong></span></strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'localhost'</span><span style="color: #007700">, </span><span style="color: #DD0000">'mysql_user'</span><span style="color: #007700">, </span><span style="color: #DD0000">'mysql_password'</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$link</span><span style="color: #007700">) {<br />die(</span><span style="color: #DD0000">'Impossible de se connecter : ' </span><span style="color: #007700">. </span><span style="color: #0000BB">mysql_error</span><span style="color: #007700">());<br />}<br /><br /></span><span style="color: #0000BB">$sql </span><span style="color: #007700">= </span><span style="color: #DD0000">'DROP DATABASE my_db'</span><span style="color: #007700">;<br />if (</span><span style="color: #0000BB">mysql_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$sql</span><span style="color: #007700">, </span><span style="color: #0000BB">$link</span><span style="color: #007700">)) {<br />echo </span><span style="color: #DD0000">"La base de données my_db a été effacée avec succès.\n"</span><span style="color: #007700">;<br />} else {<br />echo </span><span style="color: #DD0000">'Erreur lors de l\'effacement de la base : ' </span><span style="color: #007700">. </span><span style="color: #0000BB">mysql_error</span><span style="color: #007700">() . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
   </div>

  </div>
 </div>


 <div class="refsect1 notes" id="refsect1-function.mysql-drop-db-notes">
  <h3 class="title">Notes</h3>
  <div class="warning"><strong class="warning">Avertissement</strong>
   <p class="simpara">
    Cette fonction ne sera pas disponible si on a compilé MySQL
    avec la bibliothèque cliente MySQL 4.x.
   </p>
  </div>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <span class="simpara">
    Pour des raisons de compatibilité ascendante,
l&#039;alias obsolète suivant peut être utilisé : 
    <span class="function"><strong>mysql_dropdb()</strong></span>
   </span>
  </p></blockquote>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.mysql-drop-db-seealso">
  <h3 class="title">Voir aussi</h3>
  <ul class="simplelist">
   <li><span class="function"><a href="function.mysql-query.php" class="function" rel="rdfs-seeAlso">mysql_query()</a> - Envoie une requ&ecirc;te &agrave; un serveur MySQL</span></li>
  </ul>
 </div>

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