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?>
<div id="domnode.c14n" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">DOMNode::C14N</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.2.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">DOMNode::C14N</span> &mdash; <span class="dc-title">Canonise des nœuds en une chaîne</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-domnode.c14n-description">
  <h3 class="title">Description</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>DOMNode::C14N</strong></span>(<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.boolean.php" class="type bool">bool</a></span> <code class="parameter">$exclusive</code><span class="initializer"> = <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong></span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.boolean.php" class="type bool">bool</a></span> <code class="parameter">$withComments</code><span class="initializer"> = <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong></span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<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.array.php" class="type array">array</a></span></span> <code class="parameter">$xpath</code><span class="initializer"> = <strong><code><a href="reserved.constants.php#constant.null">null</a></code></strong></span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><span class="type"><a href="language.types.null.php" class="type null">?</a></span><span class="type"><a href="language.types.array.php" class="type array">array</a></span></span> <code class="parameter">$nsPrefixes</code><span class="initializer"> = <strong><code><a href="reserved.constants.php#constant.null">null</a></code></strong></span></span><br>): <span class="type"><span class="type"><a href="language.types.string.php" class="type string">string</a></span>|<span class="type"><a href="language.types.singleton.php" class="type false">false</a></span></span></div>

  <p class="para rdfs-comment">
   Canonise des nœuds en une chaîne de caractères.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-domnode.c14n-parameters">
  <h3 class="title">Liste de paramètres</h3>
  <dl>
   
    <dt><code class="parameter">exclusive</code></dt>
    <dd>
     <p class="para">
      Active l&#039;analyse des seuls nœuds correspondant à l&#039;Xpath
      ou aux préfixes d&#039;espace de noms fournis.
     </p>
    </dd>
   
   
    <dt><code class="parameter">withComments</code></dt>
    <dd>
     <p class="para">
      Conserve les commentaires dans la sortie.
     </p>
    </dd>
   
   
    <dt><code class="parameter">xpath</code></dt>
     <dd>
  <p class="para">
   Un tableau de XPaths pour filtrer les nœuds.
   Chaque entrée dans ce tableau est un tableau associatif avec :
   <ul class="itemizedlist">
    <li class="listitem">
     <span class="simpara">
      Une clé <code class="literal">query</code> requise contenant l&#039;expression XPath en tant que chaîne de caractères.
     </span>
    </li>
    <li class="listitem">
     <span class="simpara">
      Une clé <code class="literal">namespaces</code> optionnelle contenant un tableau qui mappe les préfixes de l&#039;espace de noms (clés) aux URI de l&#039;espace de noms (valeurs).
     </span>
    </li>
   </ul>
  </p>
 </dd>
   
   
    <dt><code class="parameter">nsPrefixes</code></dt>
    <dd>
     <p class="para">
      Un tableau de préfixes d&#039;espaces de noms utilisés pour
      filtrer les nœuds.
     </p>
    </dd>
   
  </dl>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-domnode.c14n-returnvalues">
  <h3 class="title">Valeurs de retour</h3>
  <p class="para">
   Retourne les nœuds canonisés, sous la forme d&#039;une <a href="language.types.string.php" class="link">chaîne de caractères</a>
    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-domnode.c14n-examples">
  <h3 class="title">Exemples</h3>
  <p class="para">
   <div class="example" id="example-1">
    <p><strong>Exemple #1 Exemple avec une requête XPath</strong></p>
    <div class="example-contents"><p>
     Cet exemple démontre une utilisation avancée par la canonicalisation et le filtrage des nœuds via une requête XPath.
    </p></div>
    <div class="example-contents">
<div class="annotation-interactive phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /><br />$dom </span><span style="color: #007700">= new </span><span style="color: #0000BB">DOMDocument</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$dom</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">loadXML</span><span style="color: #007700">(&lt;&lt;&lt;XML<br /></span><span style="color: #DD0000">&lt;root xmlns:food="urn:food"&gt;<br />    &lt;!-- déclaration d'espace de noms redondante qui sera canonisée --&gt;<br />    &lt;food:fruit xmlns:food="urn:food"&gt;Pomme&lt;/food:fruit&gt;<br />    &lt;food:fruit&gt;Orange&lt;/food:fruit&gt;<br />    &lt;food:fruit&gt;Poire&lt;/food:fruit&gt;<br />    &lt;!-- légumes ici --&gt;<br />    &lt;food:vegetable&gt;Laitue&lt;/food:vegetable&gt;<br />&lt;/root&gt;<br /></span><span style="color: #007700">XML);<br /><br />echo </span><span style="color: #0000BB">$dom</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">C14N</span><span style="color: #007700">(</span><span style="color: #0000BB">true</span><span style="color: #007700">, </span><span style="color: #0000BB">false</span><span style="color: #007700">, [<br />    </span><span style="color: #DD0000">"query" </span><span style="color: #007700">=&gt; </span><span style="color: #DD0000">".//f:fruit|.//f:fruit/text()"</span><span style="color: #007700">,<br />    </span><span style="color: #DD0000">"namespaces" </span><span style="color: #007700">=&gt; [</span><span style="color: #DD0000">"f" </span><span style="color: #007700">=&gt; </span><span style="color: #DD0000">"urn:food"</span><span style="color: #007700">],<br />]);<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>L&#039;exemple ci-dessus va afficher :</p></div>
    <div class="example-contents screen">
<div class="annotation-interactive examplescode"><pre class="examplescode">&lt;food:fruit&gt;Pomme&lt;/food:fruit&gt;&lt;food:fruit&gt;Orange&lt;/food:fruit&gt;&lt;food:fruit&gt;Poire&lt;/food:fruit&gt;</pre>
</div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-domnode.c14n-seealso">
  <h3 class="title">Voir aussi</h3>
  <p class="para">
   <ul class="simplelist">
    <li><span class="methodname"><a href="domnode.c14nfile.php" class="methodname" rel="rdfs-seeAlso">DOMNode::C14NFile()</a> - Canonise des n&oelig;uds en fichier</span></li>
   </ul>
  </p>
 </div>


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