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<div id="function.mb-str-split" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">mb_str_split</h1>
  <p class="verinfo">(PHP 7 &gt;= 7.4.0, PHP 8)</p><p class="refpurpose"><span class="refname">mb_str_split</span> &mdash; <span class="dc-title">Given a multibyte string, return an array of its characters</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.mb-str-split-description">
  <h3 class="title">Descrizione</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>mb_str_split</strong></span>(<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$string</code></span>, <span class="methodparam"><span class="type"><a href="language.types.integer.php" class="type int">int</a></span> <code class="parameter">$length</code><span class="initializer"> = 1</span></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">$encoding</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.array.php" class="type array">array</a></span></div>

  <p class="para rdfs-comment">
   This function will return an array of strings, it is a version of <span class="function"><a href="function.str-split.php" class="function">str_split()</a></span> with support for encodings of variable character size as well as fixed-size encodings of 1,2 or 4 byte characters.
   If the <code class="parameter">length</code> parameter is specified, the string is broken down into chunks of the specified length in characters (not bytes).
   The <code class="parameter">encoding</code> parameter can be optionally specified and it is good practice to do so.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.mb-str-split-parameters">
  <h3 class="title">Elenco dei parametri</h3>
  <p class="para">
   <dl>
    
     <dt><code class="parameter">string</code></dt>
     <dd>
      <p class="para">
       The <span class="type"><a href="language.types.string.php" class="type string">string</a></span> to split into characters or chunks.
      </p>
     </dd>
    
    
     <dt><code class="parameter">length</code></dt>
     <dd>
      <p class="para">
        If specified, each element of the returned array will be composed of multiple characters instead of a single character.
      </p>
     </dd>
    
    
     <dt><code class="parameter">encoding</code></dt>
     <dd>
      <p class="para">Il parametro <code class="parameter">encoding</code> 
è la codifica dei caratteri. Se è omesso, verrà utilizzata la 
codifica interna.</p>
      <p class="para">
        A string specifying one of the <a href="mbstring.supported-encodings.php" class="link">supported encodings</a>.
      </p>
     </dd>
    
   </dl>
  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.mb-str-split-returnvalues">
  <h3 class="title">Valori restituiti</h3>
  <p class="para">
   <span class="function"><strong>mb_str_split()</strong></span> returns an array of strings.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.mb-str-split-changelog">
  <h3 class="title">Log delle modifiche</h3>
  <table class="doctable informaltable">
   
    <thead>
     <tr>
      <th>Versione</th>
      <th>Descrizione</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
 <td>8.0.0</td>
 <td>
  <code class="parameter">encoding</code> is nullable now.
 </td>
</tr>

     <tr>
      <td>8.0.0</td>
      <td>
       This function no longer returns <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong> on failure.
      </td>
     </tr>

    </tbody>
   
  </table>

 </div>


 <div class="refsect1 seealso" id="refsect1-function.mb-str-split-seealso">
  <h3 class="title">Vedere anche:</h3>
  <p class="para">
   <ul class="simplelist">
    <li><span class="function"><a href="function.str-split.php" class="function" rel="rdfs-seeAlso">str_split()</a> - Converte una stringa in un array</span></li>
    <li><span class="function"><a href="function.grapheme-str-split.php" class="function" rel="rdfs-seeAlso">grapheme_str_split()</a> - Split a string into an array</span></li>
    <li><span class="function"><a href="function.explode.php" class="function" rel="rdfs-seeAlso">explode()</a> - Suddivide una stringa</span></li>
   </ul>
  </p>
 </div>


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