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<div id="ds-set.diff" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">Ds\Set::diff</h1>
  <p class="verinfo">(PECL ds &gt;= 1.0.0)</p><p class="refpurpose"><span class="refname">Ds\Set::diff</span> &mdash; <span class="dc-title">Создаёт новый набор с элементами, которых нет в другом наборе</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-ds-set.diff-description">
  <h3 class="title">Описание</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>Ds\Set::diff</strong></span>(<span class="methodparam"><span class="type"><a href="class.ds-set.php" class="type Ds\Set">Ds\Set</a></span> <code class="parameter">$set</code></span>): <span class="type"><a href="class.ds-set.php" class="type Ds\Set">Ds\Set</a></span></div>

  <p class="para rdfs-comment">
   Создаёт новый набор с элементами, которых нет в другом наборе.
  </p>
  <p class="para">
   <code class="code">A \ B = {x ∈ A | x ∉ B}</code>
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-ds-set.diff-parameters">
  <h3 class="title">Список параметров</h3>
  <dl>
   
    <dt><code class="parameter">set</code></dt>
    <dd>
     <p class="para">
      Набор, содержащий элементы, которые надо исключить из нового набора.
     </p>
    </dd>
   
  </dl>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-ds-set.diff-returnvalues">
  <h3 class="title">Возвращаемые значения</h3>
  <p class="para">
   Новый набор, содержащий все элементы, которые есть в текущем наборе и отсутствуют в переданном <code class="parameter">set</code>.
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-ds-set.diff-seealso">
  <h3 class="title">Смотрите также</h3>
  <p class="para">
   <ul class="simplelist">
    <li><a href="https://en.wikipedia.org/wiki/Complement_(set_theory)" class="link external">&raquo;&nbsp;Разность множеств</a> на Википедия</li>
   </ul>
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-ds-set.diff-examples">
  <h3 class="title">Примеры</h3>
  <div class="example" id="example-4381">
   <p><strong>Пример #1 Пример использования<span class="function"><strong>Ds\Set::diff()</strong></span></strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$a </span><span style="color: #007700">= new </span><span style="color: #0000BB">\Ds\Set</span><span style="color: #007700">([</span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">2</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">]);<br /></span><span style="color: #0000BB">$b </span><span style="color: #007700">= new </span><span style="color: #0000BB">\Ds\Set</span><span style="color: #007700">([</span><span style="color: #0000BB">3</span><span style="color: #007700">, </span><span style="color: #0000BB">4</span><span style="color: #007700">, </span><span style="color: #0000BB">5</span><span style="color: #007700">]);<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$a</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">diff</span><span style="color: #007700">(</span><span style="color: #0000BB">$b</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
   </div>

   
<div class="example-contents"><p>
 Вывод приведённого примера будет похож на:
</p></div>

   <div class="example-contents screen">
<div class="examplescode"><pre class="examplescode">object(Ds\Set)#3 (2) {
  [0]=&gt;
  int(1)
  [1]=&gt;
  int(2)
}</pre>
</div>
   </div>
  </div>
 </div>



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