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<div id="function.array-multisort" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">array_multisort</h1>
  <p class="verinfo">(PHP 4, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">array_multisort</span> &mdash; <span class="dc-title">Ordena múltiplos arrays ou arrays multidimensionais</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.array-multisort-description">
  <h3 class="title">Descrição</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>array_multisort</strong></span>(<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.array.php" class="type array">array</a></span> <code class="parameter reference">&$array1</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.mixed.php" class="type mixed">mixed</a></span> <code class="parameter">$array1_sort_order</code><span class="initializer"> = SORT_ASC</span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.mixed.php" class="type mixed">mixed</a></span> <code class="parameter">$array1_sort_flags</code><span class="initializer"> = SORT_REGULAR</span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.mixed.php" class="type mixed">mixed</a></span> <code class="parameter">...$rest</code></span><br>): <span class="type"><a href="language.types.singleton.php" class="type true">true</a></span></div>

  <p class="para rdfs-comment">
   <span class="function"><strong>array_multisort()</strong></span> pode ser usada para ordenar
   vários arrays de uma vez, ou um array multidimensional por uma
   ou mais dimensões.
  </p>
  <p class="para">
   Chaves associativas (<span class="type"><a href="language.types.string.php" class="type string">string</a></span>) serão mantidas, mas chaves
   numéricas serão reindexadas.
  </p>
  <blockquote class="note"><p><strong class="note">Nota</strong>: 
 <p class="para">
  Se dois elementos são comparados como iguais, eles mantêm sua ordem original.
  Antes do PHP 8.0.0, sua ordem relativa no array ordenado era indefinida.
 </p>
</p></blockquote>

  <blockquote class="note"><p><strong class="note">Nota</strong>: 
 <p class="para">
  Redefine o ponteiro interno do array para o primeiro elemento.
 </p>
</p></blockquote>

 </div>


 <div class="refsect1 parameters" id="refsect1-function.array-multisort-parameters">
  <h3 class="title">Parâmetros</h3>
  <p class="para">
   <dl>
    
     <dt><code class="parameter">array1</code></dt>
     <dd>
      <p class="para">
       Um <span class="type"><a href="language.types.array.php" class="type array">array</a></span> a ser ordenado.
      </p>
     </dd>
    
    
     <dt><code class="parameter">array1_sort_order</code></dt>
     <dd>
      <p class="para">
       A ordenação para ser utilizada no argumento <span class="type"><a href="language.types.array.php" class="type array">array</a></span> anterior. Pode ser
       <strong><code><a href="array.constants.php#constant.sort-asc">SORT_ASC</a></code></strong> para ordenar na ascendente (crescente) ou <strong><code><a href="array.constants.php#constant.sort-desc">SORT_DESC</a></code></strong>
       para ordernar na descendente (decrescente).
      </p>
      <p class="para">
       Este argumento pode ser trocado com <code class="parameter">array1_sort_flags</code>
       ou ser omitido completamente, e nesse caso é utilizado <strong><code><a href="array.constants.php#constant.sort-asc">SORT_ASC</a></code></strong>.
      </p>
     </dd>
    
    
     <dt><code class="parameter">array1_sort_flags</code></dt>
     <dd>
      <p class="para">
       Opções de ordenamento para o argumento <span class="type"><a href="language.types.array.php" class="type array">array</a></span> anterior:
      </p>
      <p class="para">
       Flags:
       <ul class="itemizedlist">
        <li class="listitem">
         <span class="simpara"><strong><code><a href="array.constants.php#constant.sort-regular">SORT_REGULAR</a></code></strong> - comparar itens normalmente
         (não modidifica tipos)</span>
        </li>
        <li class="listitem">
         <span class="simpara"><strong><code><a href="array.constants.php#constant.sort-numeric">SORT_NUMERIC</a></code></strong> - compara itens numericamente</span>
        </li>
        <li class="listitem">
         <span class="simpara"><strong><code><a href="array.constants.php#constant.sort-string">SORT_STRING</a></code></strong> - compara itens como strings</span>
        </li>
        <li class="listitem">
         <span class="simpara">
          <strong><code><a href="array.constants.php#constant.sort-locale-string">SORT_LOCALE_STRING</a></code></strong> - compara itens como
          strings, utilizando a localidade atual. Utiliza a localidade,
          que pode ser modificada com <span class="function"><a href="function.setlocale.php" class="function">setlocale()</a></span>
         </span>
        </li>
        <li class="listitem">
         <span class="simpara">
          <strong><code><a href="array.constants.php#constant.sort-natural">SORT_NATURAL</a></code></strong> - compara itens como strings
          utilizando a &quot;ordenação natural&quot; de <span class="function"><a href="function.natsort.php" class="function">natsort()</a></span>
         </span>
        </li>
        <li class="listitem">
         <span class="simpara">
          <strong><code><a href="array.constants.php#constant.sort-flag-case">SORT_FLAG_CASE</a></code></strong> - pode ser combinada
          (operação OR binária) com
          <strong><code><a href="array.constants.php#constant.sort-string">SORT_STRING</a></code></strong> ou
          <strong><code><a href="array.constants.php#constant.sort-natural">SORT_NATURAL</a></code></strong> para ordenar as strings sem considerar maiúsculas e minúsculas
         </span>
        </li>
       </ul>
      </p>
      <p class="para">
       Este argumento pode ser trocado com <code class="parameter">array1_sort_order</code>
       ou completamente omitido, e nesse caso é utilizado <strong><code><a href="array.constants.php#constant.sort-regular">SORT_REGULAR</a></code></strong>.
      </p>
     </dd>
    
    
     <dt><code class="parameter">rest</code></dt>
     <dd>
      <p class="para">
       Outros arrays, podendo informar também ordem e opções de ordenação. Somente elementos
       correspondentes a elementos equivalentes nos arrays anteriores são comparados.
       Em outras palavras, a ordem é lexigráfica.
      </p>
     </dd>
    
   </dl>
  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.array-multisort-returnvalues">
  <h3 class="title">Valor Retornado</h3>
  <p class="para">
   Sempre retorna <strong><code><a href="reserved.constants.php#constant.true">true</a></code></strong>.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.array-multisort-changelog">
  <h3 class="title">Registro de Alterações</h3>
  <table class="doctable informaltable">
   
    <thead>
     <tr>
      <th>Versão</th>
      <th>Descrição</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
      <td>8.5.0</td>
      <td>
       Agora o tipo de retorno é <strong><code><a href="reserved.constants.php#constant.true">true</a></code></strong>, antes era <span class="type"><a href="language.types.boolean.php" class="type bool">bool</a></span>.
      </td>
     </tr>

    </tbody>
   
  </table>

 </div>


 <div class="refsect1 examples" id="refsect1-function.array-multisort-examples">
  <h3 class="title">Exemplos</h3>
  <p class="para">
   <div class="example" id="example-1">
    <p><strong>Exemplo #1 Ordenando vários arrays</strong></p>
    <div class="example-contents">
<div class="annotation-interactive phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$ar1 </span><span style="color: #007700">= array(</span><span style="color: #0000BB">10</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$ar2 </span><span style="color: #007700">= array(</span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">, </span><span style="color: #0000BB">2</span><span style="color: #007700">, </span><span style="color: #0000BB">4</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">array_multisort</span><span style="color: #007700">(</span><span style="color: #0000BB">$ar1</span><span style="color: #007700">, </span><span style="color: #0000BB">$ar2</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$ar1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$ar2</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>
     Nesse exemplo, após a ordenação, o primeiro array conterá 0,
     10, 100, 100. O segundo array conterá 4, 1, 2, 3. Os
     itens no segundo array correspondentes ao itens idênticos
     do primeiro array (100 e 100) também são ordenados.
    </p></div>
    <div class="example-contents screen">
<div class="annotation-interactive examplescode"><pre class="examplescode">array(4) {
  [0]=&gt; int(0)
  [1]=&gt; int(10)
  [2]=&gt; int(100)
  [3]=&gt; int(100)
}
array(4) {
  [0]=&gt; int(4)
  [1]=&gt; int(1)
  [2]=&gt; int(2)
  [3]=&gt; int(3)
}</pre>
</div>
    </div>
   </div>
  </p>
  <p class="para">
   <div class="example" id="example-2">
    <p><strong>Exemplo #2 Ordenando arrays multidimensionais</strong></p>
    <div class="example-contents">
<div class="annotation-interactive phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$ar </span><span style="color: #007700">= array(<br />       array(</span><span style="color: #DD0000">"10"</span><span style="color: #007700">, </span><span style="color: #0000BB">11</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #DD0000">"a"</span><span style="color: #007700">),<br />       array(   </span><span style="color: #0000BB">1</span><span style="color: #007700">,  </span><span style="color: #0000BB">2</span><span style="color: #007700">, </span><span style="color: #DD0000">"2"</span><span style="color: #007700">,   </span><span style="color: #0000BB">3</span><span style="color: #007700">,   </span><span style="color: #0000BB">1</span><span style="color: #007700">)<br />      );<br /></span><span style="color: #0000BB">array_multisort</span><span style="color: #007700">(</span><span style="color: #0000BB">$ar</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">], </span><span style="color: #0000BB">SORT_ASC</span><span style="color: #007700">, </span><span style="color: #0000BB">SORT_STRING</span><span style="color: #007700">,<br />                </span><span style="color: #0000BB">$ar</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">], </span><span style="color: #0000BB">SORT_NUMERIC</span><span style="color: #007700">, </span><span style="color: #0000BB">SORT_DESC</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$ar</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>
     Neste exemplo, após a ordenação, o primeiro array será transformado para
     &quot;10&quot;, 100, 100, 11, &quot;a&quot; (ordenado os itens como strings em ordem
     crescente). O segundo conterá 1, 3, &quot;2&quot;, 2, 1 (ordenado como números,
     em ordem decrescente).
    </p></div>
    <div class="example-contents screen">
<div class="annotation-interactive examplescode"><pre class="examplescode">array(2) {
  [0]=&gt; array(5) {
    [0]=&gt; string(2) &quot;10&quot;
    [1]=&gt; int(100)
    [2]=&gt; int(100)
    [3]=&gt; int(11)
    [4]=&gt; string(1) &quot;a&quot;
  }
  [1]=&gt; array(5) {
    [0]=&gt; int(1)
    [1]=&gt; int(3)
    [2]=&gt; string(1) &quot;2&quot;
    [3]=&gt; int(2)
    [4]=&gt; int(1)
  }
}</pre>
</div>
    </div>
   </div>
  </p>
  <p class="para">
   <div class="example" id="example-3">
    <p><strong>Exemplo #3 Ordenando resultados de bancos de dados</strong></p>
    <div class="example-contents"><p>
     Neste exemplo, cada elemento no array <var class="varname">data</var>
     representa um iten em uma tabela. Esse tipo de conjunto de dados é típico
     de registros de base de dados.
    </p></div>
    <div class="example-contents"><p>
     Exemplo:
    </p></div>
    <div class="example-contents screen">
<div class="annotation-interactive examplescode"><pre class="examplescode">volume | edition
-------+--------
    67 |       2
    86 |       1
    85 |       6
    98 |       2
    86 |       6
    67 |       7</pre>
</div>
    </div>
    <div class="example-contents"><p>
     Os dados estão em um array, chamado <var class="varname">data</var>. Isso pode ser obtido,
     por exemplo, de rodar <span class="function"><a href="mysqli-result.fetch-assoc.php" class="function">mysqli_fetch_assoc()</a></span> em loop.
    </p></div>
    <div class="example-contents"><p>
     Vamos ordenar <var class="varname">volume</var> decrescente e
     <var class="varname">edition</var> crescente.
    </p></div>
    <div class="example-contents"><p>
     Aqui temos um array de registros, mas <span class="function"><strong>array_multisort()</strong></span>
     exige um array de colunas, então é preciso converter os dados utilizando o código abaixo
     para então executar a ordenação.
    </p></div>
    <div class="example-contents">
<div class="annotation-interactive phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">// Os dados como foram criados percorrendo o resultado de mysqli_fetch_assoc:<br /></span><span style="color: #0000BB">$data</span><span style="color: #007700">[] = array(</span><span style="color: #DD0000">'volume' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">67</span><span style="color: #007700">, </span><span style="color: #DD0000">'edition' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">2</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$data</span><span style="color: #007700">[] = array(</span><span style="color: #DD0000">'volume' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">86</span><span style="color: #007700">, </span><span style="color: #DD0000">'edition' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$data</span><span style="color: #007700">[] = array(</span><span style="color: #DD0000">'volume' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">85</span><span style="color: #007700">, </span><span style="color: #DD0000">'edition' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">6</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$data</span><span style="color: #007700">[] = array(</span><span style="color: #DD0000">'volume' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">98</span><span style="color: #007700">, </span><span style="color: #DD0000">'edition' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">2</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$data</span><span style="color: #007700">[] = array(</span><span style="color: #DD0000">'volume' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">86</span><span style="color: #007700">, </span><span style="color: #DD0000">'edition' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">6</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$data</span><span style="color: #007700">[] = array(</span><span style="color: #DD0000">'volume' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">67</span><span style="color: #007700">, </span><span style="color: #DD0000">'edition' </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">7</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Obtém uma lista de colunas<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">$data </span><span style="color: #007700">as </span><span style="color: #0000BB">$key </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">$row</span><span style="color: #007700">) {<br />    </span><span style="color: #0000BB">$volume</span><span style="color: #007700">[</span><span style="color: #0000BB">$key</span><span style="color: #007700">]  = </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">'volume'</span><span style="color: #007700">];<br />    </span><span style="color: #0000BB">$edition</span><span style="color: #007700">[</span><span style="color: #0000BB">$key</span><span style="color: #007700">] = </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">'edition'</span><span style="color: #007700">];<br />}<br /><br /></span><span style="color: #FF8000">// Pode ser usada a função array_column() no lugar do código acima<br /></span><span style="color: #0000BB">$volume  </span><span style="color: #007700">= </span><span style="color: #0000BB">array_column</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">, </span><span style="color: #DD0000">'volume'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$edition </span><span style="color: #007700">= </span><span style="color: #0000BB">array_column</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">, </span><span style="color: #DD0000">'edition'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Ordena os dados por volume decrescente, edição crescente.<br />// Adiciona $data como último parâmetro, para ordenar por uma chave comum.<br /></span><span style="color: #0000BB">array_multisort</span><span style="color: #007700">(</span><span style="color: #0000BB">$volume</span><span style="color: #007700">, </span><span style="color: #0000BB">SORT_DESC</span><span style="color: #007700">, </span><span style="color: #0000BB">$edition</span><span style="color: #007700">, </span><span style="color: #0000BB">SORT_ASC</span><span style="color: #007700">, </span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Percorre os dados e exibe os valores ordenados para cada coluna<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'volume | edition'</span><span style="color: #007700">, </span><span style="color: #0000BB">PHP_EOL</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">'-------+--------'</span><span style="color: #007700">, </span><span style="color: #0000BB">PHP_EOL</span><span style="color: #007700">;<br />for (</span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">0</span><span style="color: #007700">; </span><span style="color: #0000BB">$i </span><span style="color: #007700">&lt; </span><span style="color: #0000BB">count</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">); </span><span style="color: #0000BB">$i</span><span style="color: #007700">++) {<br />     </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%6d | %7d\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$volume</span><span style="color: #007700">[</span><span style="color: #0000BB">$i</span><span style="color: #007700">], </span><span style="color: #0000BB">$edition</span><span style="color: #007700">[</span><span style="color: #0000BB">$i</span><span style="color: #007700">]);<br />}<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>
     O conjunto de dados agora está ordenado, assim:
    </p></div>
    <div class="example-contents screen">
<div class="annotation-interactive examplescode"><pre class="examplescode">volume | edition
-------+--------
    98 |       2
    86 |       1
    86 |       6
    85 |       6
    67 |       2
    67 |       7</pre>
</div>
    </div>
   </div>
  </p>
  <p class="para">
   <div class="example" id="example-4">
    <p><strong>Exemplo #4 Ordenação sem diferenciar maiúsculas/minúsculas</strong></p>
    <div class="example-contents"><p>
     <strong><code><a href="array.constants.php#constant.sort-string">SORT_STRING</a></code></strong> e
     <strong><code><a href="array.constants.php#constant.sort-regular">SORT_REGULAR</a></code></strong> são sensíveis a maiúsculas e minúsculas, de forma que strings
     começando com maiúsculas aparecerão primeiro que strings começando com
     minúsculas.
    </p></div>
    <div class="example-contents"><p>
     Para realizar uma ordenação sem diferenciar maiúsculas/minúsculas é preciso forçar para que
     a ordenação seja executada com uma cópia do array original, transformado em minúsculas.
    </p></div>
    <div class="example-contents">
<div class="annotation-interactive phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$array </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'Alpha'</span><span style="color: #007700">, </span><span style="color: #DD0000">'atomic'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Beta'</span><span style="color: #007700">, </span><span style="color: #DD0000">'bank'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$array_lowercase </span><span style="color: #007700">= </span><span style="color: #0000BB">array_map</span><span style="color: #007700">(</span><span style="color: #DD0000">'strtolower'</span><span style="color: #007700">, </span><span style="color: #0000BB">$array</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">array_multisort</span><span style="color: #007700">(</span><span style="color: #0000BB">$array_lowercase</span><span style="color: #007700">, </span><span style="color: #0000BB">SORT_ASC</span><span style="color: #007700">, </span><span style="color: #0000BB">SORT_STRING</span><span style="color: #007700">, </span><span style="color: #0000BB">$array</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$array</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>O exemplo acima produzirá:</p></div>
    <div class="example-contents screen">
<div class="annotation-interactive examplescode"><pre class="examplescode">Array
(
    [0] =&gt; Alpha
    [1] =&gt; atomic
    [2] =&gt; bank
    [3] =&gt; Beta
)</pre>
</div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.array-multisort-seealso">
  <h3 class="title">Veja Também</h3>
  <p class="para">
   <ul class="simplelist">
    <li><span class="function"><a href="function.usort.php" class="function" rel="rdfs-seeAlso">usort()</a> - Ordena um array pelos valores utilizando uma fun&ccedil;&atilde;o de compara&ccedil;&atilde;o definida pelo usu&aacute;rio</span></li>
    <li><a href="array.sorting.php" class="link">Comparação entre as funções de ordenação de array</a></li>
   </ul>
  </p>
 </div>


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