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<div id="appenditerator.construct" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">AppendIterator::__construct</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.1.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">AppendIterator::__construct</span> &mdash; <span class="dc-title">Construye un AppendIterator</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-appenditerator.construct-description">
  <h3 class="title">Descripción</h3>
  <div class="constructorsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>AppendIterator::__construct</strong></span>()</div>

  <p class="para rdfs-comment">
   Construye un AppendIterator.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-appenditerator.construct-parameters">
  <h3 class="title">Parámetros</h3>
  <p class="para">Esta función no contiene ningún parámetro.</p>
 </div>


 <div class="refsect1 examples" id="refsect1-appenditerator.construct-examples">
  <h3 class="title">Ejemplos</h3>
  <p class="para">
   <div class="example" id="appenditerator.examples.foreach">
    <p><strong>Ejemplo #1 Recorriendo AppendIterator con foreach</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$pizzas   </span><span style="color: #007700">= new </span><span style="color: #0000BB">ArrayIterator</span><span style="color: #007700">(array(</span><span style="color: #DD0000">'Margarita'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Siciliana'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Hawaii'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">$ingredientes </span><span style="color: #007700">= new </span><span style="color: #0000BB">ArrayIterator</span><span style="color: #007700">(array(</span><span style="color: #DD0000">'Cheese'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Anchovies'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Olives'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Pineapple'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Ham'</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">$appendIterator </span><span style="color: #007700">= new </span><span style="color: #0000BB">AppendIterator</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$appendIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">append</span><span style="color: #007700">(</span><span style="color: #0000BB">$pizzas</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$appendIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">append</span><span style="color: #007700">(</span><span style="color: #0000BB">$ingredientes</span><span style="color: #007700">);<br /><br />foreach (</span><span style="color: #0000BB">$appendIterator </span><span style="color: #007700">as </span><span style="color: #0000BB">$key </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">$item</span><span style="color: #007700">) {<br />    echo </span><span style="color: #0000BB">$key </span><span style="color: #007700">. </span><span style="color: #DD0000">' =&gt; ' </span><span style="color: #007700">. </span><span style="color: #0000BB">$item </span><span style="color: #007700">. </span><span style="color: #0000BB">PHP_EOL</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>El ejemplo anterior mostrará:</p></div>
    <div class="example-contents screen">
<div class="examplescode"><pre class="examplescode">0 =&gt; Margarita
1 =&gt; Siciliana
2 =&gt; Hawaii
0 =&gt; Cheese
1 =&gt; Anchovies
2 =&gt; Olives
3 =&gt; Pineapple
4 =&gt; Ham</pre>
</div>
    </div>
   </div>
   <div class="example" id="appenditerator.examples.api">
    <p><strong>Ejemplo #2 Recorriendo AppendIterator con la API de AppendIterator</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$pizzas   </span><span style="color: #007700">= new </span><span style="color: #0000BB">ArrayIterator</span><span style="color: #007700">(array(</span><span style="color: #DD0000">'Margarita'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Siciliana'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Hawaii'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">$ingredientes </span><span style="color: #007700">= new </span><span style="color: #0000BB">ArrayIterator</span><span style="color: #007700">(array(</span><span style="color: #DD0000">'Cheese'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Anchovies'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Olives'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Pineapple'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Ham'</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">$appendIterator </span><span style="color: #007700">= new </span><span style="color: #0000BB">AppendIterator</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$appendIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">append</span><span style="color: #007700">(</span><span style="color: #0000BB">$pizzas</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$appendIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">append</span><span style="color: #007700">(</span><span style="color: #0000BB">$ingredientes</span><span style="color: #007700">);<br /><br />while (</span><span style="color: #0000BB">$appendIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">valid</span><span style="color: #007700">()) {<br />    </span><span style="color: #0000BB">printf</span><span style="color: #007700">(<br />        </span><span style="color: #DD0000">'%s =&gt; %s =&gt; %s%s'</span><span style="color: #007700">,<br />        </span><span style="color: #0000BB">$appendIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getIteratorIndex</span><span style="color: #007700">(),<br />        </span><span style="color: #0000BB">$appendIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">key</span><span style="color: #007700">(),<br />        </span><span style="color: #0000BB">$appendIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">current</span><span style="color: #007700">(),<br />        </span><span style="color: #0000BB">PHP_EOL<br />    </span><span style="color: #007700">);<br />    </span><span style="color: #0000BB">$appendIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">next</span><span style="color: #007700">();<br />}<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>El ejemplo anterior mostrará:</p></div>
    <div class="example-contents screen">
<div class="examplescode"><pre class="examplescode">0 =&gt; 0 =&gt; Margarita
0 =&gt; 1 =&gt; Siciliana
0 =&gt; 2 =&gt; Hawaii
1 =&gt; 0 =&gt; Cheese
1 =&gt; 1 =&gt; Anchovies
1 =&gt; 2 =&gt; Olives
1 =&gt; 3 =&gt; Pineapple
1 =&gt; 4 =&gt; Ham</pre>
</div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 notes" id="refsect1-appenditerator.construct-notes">
  <h3 class="title">Notas</h3>
  <div class="caution"><strong class="caution">Precaución</strong>
   <p class="para">
    Al usar <span class="function"><a href="function.iterator-to-array.php" class="function">iterator_to_array()</a></span> para copiar los valores de AppendIterator
    a un array, debe asignarse al parámetro opcional <code class="parameter">use_key</code> el valor
    <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong>. Si <code class="parameter">use_key</code> no es <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong>, las claves que se repitan en los
    iteradores internos se sobrescribirán en el array final. No existe ninguna forma para preservar las claves originales.
   </p>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-appenditerator.construct-seealso">
  <h3 class="title">Ver también</h3>
  <p class="para">
   <ul class="simplelist">
    <li><span class="methodname"><a href="appenditerator.append.php" class="methodname" rel="rdfs-seeAlso">AppendIterator::append()</a> - A&ntilde;ade un iterador</span></li>
   </ul>
  </p>
 </div>


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