<?php
include_once $_SERVER['DOCUMENT_ROOT'] . '/include/shared-manual.inc';
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include_once dirname(__FILE__) ."/toc/ref.image.inc";
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  'this' => 
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    1 => 'imagegd',
    2 => 'G&eacute;n&egrave;re une image au format GD, vers le navigateur ou un fichier',
  ),
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  array (
    0 => 'ref.image.php',
    1 => 'Fonctions GD et images',
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contributors($setup);

?>
<div id="function.imagegd" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">imagegd</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.0.7, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">imagegd</span> &mdash; <span class="dc-title">Génère une image au format GD, vers le navigateur ou un fichier</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.imagegd-description">
  <h3 class="title">Description</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>imagegd</strong></span>(<span class="methodparam"><span class="type"><a href="class.gdimage.php" class="type GdImage">GdImage</a></span> <code class="parameter">$image</code></span>, <span class="methodparam"><span class="type"><span class="type"><a href="language.types.null.php" class="type null">?</a></span><span class="type"><a href="language.types.string.php" class="type string">string</a></span></span> <code class="parameter">$file</code><span class="initializer"> = <strong><code><a href="reserved.constants.php#constant.null">null</a></code></strong></span></span>): <span class="type"><a href="language.types.boolean.php" class="type bool">bool</a></span></div>

  <p class="para rdfs-comment">
   Génère ou sauvegarde le fichier <code class="parameter">file</code> au format GD.
  </p>
 </div>

 <div class="refsect1 parameters" id="refsect1-function.imagegd-parameters">
  <h3 class="title">Liste de paramètres</h3>
  <p class="para">
   <dl>
    
<dt><code class="parameter">image</code></dt><dd><p class="para">
 Un objet <span class="classname"><a href="class.gdimage.php" class="classname">GdImage</a></span>, retournée par une des fonctions de
 création d&#039;images, comme <span class="function"><a href="function.imagecreatetruecolor.php" class="function">imagecreatetruecolor()</a></span>.
</p></dd>
    
     <dt><code class="parameter">file</code></dt>
     <dd>
      <p class="para">Le chemin ou un flux de ressource ouvert (qui sera automatiquement fermé après
        le retour de cette fonction) vers lequel le fichier sera sauvegardé.
        Si non-défini ou <strong><code><a href="reserved.constants.php#constant.null">null</a></code></strong>, le flux brute de l&#039;image sera affiché directement.</p>
     </dd>
    
   </dl>
  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.imagegd-returnvalues">
  <h3 class="title">Valeurs de retour</h3>
  <p class="para">
   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 class="caution"><strong class="caution">Attention</strong><p class="simpara">Toutefois, si libgd ne parvient pas à produire l&#039;image, cette fonction retourne <strong><code><a href="reserved.constants.php#constant.true">true</a></code></strong>.</p></div>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.imagegd-changelog">
  <h3 class="title">Historique</h3>
  <p class="para">
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>Version</th>
       <th>Description</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>8.0.3</td>
       <td>
        <code class="parameter">file</code> est désormais nullable.
       </td>
      </tr>

      <tr>
 <td>8.0.0</td>
 <td>
  <code class="parameter">image</code> attend une instance de <span class="classname"><a href="class.gdimage.php" class="classname">GdImage</a></span> désormais;
  auparavant, une <span class="type"><a href="language.types.resource.php" class="type resource">resource</a></span> <code class="literal">gd</code> était attendue.
 </td>
</tr>

      <tr>
       <td>7.2.0</td>
       <td>
        <span class="function"><strong>imagegd()</strong></span> permet maintenant de produire des images 
        TrueColor. Auparavant, elles ont été implicitement converties en palette.
       </td>
      </tr>

     </tbody>
    
   </table>

  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.imagegd-examples">
  <h3 class="title">Exemples</h3>
  <p class="para">
   <div class="example" id="example-1">
    <p><strong>Exemple #1 Affichage d&#039;une image GD</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">// Création d'une image vide et ajout d'un texte<br /></span><span style="color: #0000BB">$im </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecreatetruecolor</span><span style="color: #007700">(</span><span style="color: #0000BB">120</span><span style="color: #007700">, </span><span style="color: #0000BB">20</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$text_color </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #0000BB">233</span><span style="color: #007700">, </span><span style="color: #0000BB">14</span><span style="color: #007700">, </span><span style="color: #0000BB">91</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagestring</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">5</span><span style="color: #007700">, </span><span style="color: #0000BB">5</span><span style="color: #007700">,  </span><span style="color: #DD0000">"Un texte simple"</span><span style="color: #007700">, </span><span style="color: #0000BB">$text_color</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Affichage de l'image<br /></span><span style="color: #0000BB">imagegd</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

   </div>
  </p>
  <p class="para">
   <div class="example" id="example-2">
    <p><strong>Exemple #2 Sauvegarde d&#039;une image GD</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">// Création d'une image vide et ajout d'un texte<br /></span><span style="color: #0000BB">$im </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecreatetruecolor</span><span style="color: #007700">(</span><span style="color: #0000BB">120</span><span style="color: #007700">, </span><span style="color: #0000BB">20</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$text_color </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #0000BB">233</span><span style="color: #007700">, </span><span style="color: #0000BB">14</span><span style="color: #007700">, </span><span style="color: #0000BB">91</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagestring</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">5</span><span style="color: #007700">, </span><span style="color: #0000BB">5</span><span style="color: #007700">,  </span><span style="color: #DD0000">"Un texte simple"</span><span style="color: #007700">, </span><span style="color: #0000BB">$text_color</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Sauvegarde de l'image GD<br />// Le format de fichier pour les images GD est .gd, voir http://www.libgd.org/GdFileFormats<br /></span><span style="color: #0000BB">imagegd</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #DD0000">'simple.gd'</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

   </div>
  </p>
 </div>


 <div class="refsect1 notes" id="refsect1-function.imagegd-notes">
  <h3 class="title">Notes</h3>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <p class="para">
    Le format GD est communément utilisé pour autoriser le chargement
    rapide des parties d&#039;une image. Il est à noter que le format GD est uniquement
    utilisable dans les applications compatibles GD.
   </p>
  </p></blockquote>
  <div class="warning"><strong class="warning">Avertissement</strong><p class="simpara">
Les formats d&#039;image GD et GD2 sont des formats d&#039;images propriétaire de libgd.
Ils doivent être considérés <em>obsolète</em>, et devraient seulement
être utilisé lors du développement et la phase de test.</p></div>
 </div>

 <div class="refsect1 seealso" id="refsect1-function.imagegd-seealso">
  <h3 class="title">Voir aussi</h3>
  <ul class="simplelist">
   <li><span class="function"><a href="function.imagegd2.php" class="function" rel="rdfs-seeAlso">imagegd2()</a> - G&eacute;n&egrave;re une image au format GD2, vers le navigateur ou un fichier</span></li>
  </ul>
 </div>

</div><?php manual_footer($setup); ?>