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<div id="function.call-user-func" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">call_user_func</h1>
  <p class="verinfo">(PHP 4, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">call_user_func</span> &mdash; <span class="dc-title">İlk bağımsız değişkende belirtilen kullanıcı işlevini çağırır
  </span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.call-user-func-description">
  <h3 class="title">Açıklama</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>call_user_func</strong></span>(<span class="methodparam"><span class="type"><a href="language.types.callable.php" class="type callable">callable</a></span> <code class="parameter">$işlev</code></span>, <span class="methodparam"><span class="type"><a href="language.types.mixed.php" class="type mixed">mixed</a></span> <code class="parameter">...$bağımsız_değişkenler</code></span>): <span class="type"><a href="language.types.mixed.php" class="type mixed">mixed</a></span></div>

  <p class="para rdfs-comment">
   <code class="parameter">işlev</code> bağımsız değişkeni ile belirtilen geriçağırım
   işlevini belirtilen <code class="parameter">bağımsız_değişkenler</code>i aktararak
   çağırır.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.call-user-func-parameters">
  <h3 class="title">Bağımsız Değişkenler</h3>
  <p class="para">
   <dl>
    
     <dt><code class="parameter">işlev</code></dt>
     <dd>
      <p class="para">
       Çağırılacak geriçağırım işlevi.
      </p>
     </dd>
    
    
     <dt><code class="parameter">bağımsız_değişkenler</code></dt>
     <dd>
      <p class="para">
       İşleve sıfır veya daha fazla sayıda bağımsız değişken aktarılabilir.
      </p>
      <blockquote class="note"><p><strong class="note">Bilginize</strong>: 
       <p class="para">
        <span class="function"><strong>call_user_func()</strong></span> işlevi gönderimli bağımsız değişkenleri
        aktarmaz.
        <div class="example" id="example-1">
         <p><strong>Örnek 1 - <span class="function"><strong>call_user_func()</strong></span> örneği ve gönderimler
         </strong></p>
         <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />error_reporting</span><span style="color: #007700">(</span><span style="color: #0000BB">E_ALL</span><span style="color: #007700">);<br /><br />function </span><span style="color: #0000BB">say</span><span style="color: #007700">(&amp;</span><span style="color: #0000BB">$sayı</span><span style="color: #007700">)<br />{<br />    </span><span style="color: #0000BB">$sayı</span><span style="color: #007700">++;<br />}<br /><br /></span><span style="color: #0000BB">$a </span><span style="color: #007700">= </span><span style="color: #0000BB">0</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">call_user_func</span><span style="color: #007700">(</span><span style="color: #DD0000">'say'</span><span style="color: #007700">, </span><span style="color: #0000BB">$a</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">$a</span><span style="color: #007700">.</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// yerine bu da kullanılabilir<br /></span><span style="color: #0000BB">call_user_func_array</span><span style="color: #007700">(</span><span style="color: #DD0000">'say'</span><span style="color: #007700">, array(&amp;</span><span style="color: #0000BB">$a</span><span style="color: #007700">));<br />echo </span><span style="color: #0000BB">$a</span><span style="color: #007700">.</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// ayrıca, bir değişken işlev de kullanılabilir<br /></span><span style="color: #0000BB">$increment </span><span style="color: #007700">= </span><span style="color: #DD0000">'increment'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$increment</span><span style="color: #007700">(</span><span style="color: #0000BB">$a</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">$a</span><span style="color: #007700">.</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
         </div>

         <div class="example-contents"><p>
Yukarıdaki örneğin çıktısı:</p></div>
         <div class="example-contents screen">
<div class="parameterscode"><pre class="parameterscode">Warning: Parameter 1 to increment() expected to be a reference, value given in …
0
1
2</pre>
</div>
         </div>
        </div>
       </p>
      </p></blockquote>
     </dd>
    
   </dl>
  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.call-user-func-returnvalues">
  <h3 class="title">Dönen Değerler</h3>
  <p class="para">
   Geriçağırım işlevinin dönüş değerini döndürür.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.call-user-func-examples">
  <h3 class="title">Örnekler</h3>
  <p class="para">
   <div class="example" id="example-2">
    <p><strong>Örnek 2 - <span class="function"><strong>call_user_func()</strong></span> örneği</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">function </span><span style="color: #0000BB">berber</span><span style="color: #007700">(</span><span style="color: #0000BB">$tür</span><span style="color: #007700">)<br />{<br />    echo </span><span style="color: #DD0000">"Demek </span><span style="color: #0000BB">$tür</span><span style="color: #DD0000"> kesimi istiyorsunuz, sorun yok.\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">call_user_func</span><span style="color: #007700">(</span><span style="color: #DD0000">'berber'</span><span style="color: #007700">, </span><span style="color: #DD0000">"saç"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">call_user_func</span><span style="color: #007700">(</span><span style="color: #DD0000">'berber'</span><span style="color: #007700">, </span><span style="color: #DD0000">"sakal"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>
Yukarıdaki örneğin çıktısı:</p></div>
    <div class="example-contents screen">
<div class="examplescode"><pre class="examplescode">Demek saç kesimi istiyorsunuz, sorun yok.
Demek sakal kesimi istiyorsunuz, sorun yok.</pre>
</div>
    </div>
   </div>

   <div class="example" id="example-3">
    <p><strong>Örnek 3 - İsim alanı ismi kullanarak <span class="function"><strong>call_user_func()</strong></span>
    </strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #007700">namespace </span><span style="color: #0000BB">Mesela</span><span style="color: #007700">;<br /><br />class </span><span style="color: #0000BB">Misal </span><span style="color: #007700">{<br />    static public function </span><span style="color: #0000BB">dnm</span><span style="color: #007700">() {<br />        print </span><span style="color: #DD0000">"Merhaba Dünyalı!\n"</span><span style="color: #007700">;<br />    }<br />}<br /><br /></span><span style="color: #0000BB">call_user_func</span><span style="color: #007700">(</span><span style="color: #0000BB">__NAMESPACE__ </span><span style="color: #007700">.</span><span style="color: #DD0000">'\Misal::dnm'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">call_user_func</span><span style="color: #007700">(array(</span><span style="color: #0000BB">__NAMESPACE__ </span><span style="color: #007700">.</span><span style="color: #DD0000">'\Misal'</span><span style="color: #007700">, </span><span style="color: #DD0000">'dnm'</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>
Yukarıdaki örneğin çıktısı:</p></div>
    <div class="example-contents screen">
<div class="examplescode"><pre class="examplescode">Merhaba Dünyalı!
Merhaba Dünyalı!</pre>
</div>
    </div>
   </div>
   <div class="example" id="example-4">
    <p><strong>Örnek 4 - Sınıf yöntemi kullanarak <span class="function"><strong>call_user_func()</strong></span>
    </strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #007700">class </span><span style="color: #0000BB">Sınıfım </span><span style="color: #007700">{<br />    static function </span><span style="color: #0000BB">selam_ver</span><span style="color: #007700">()<br />    {<br />        echo </span><span style="color: #DD0000">"Merhaba!\n"</span><span style="color: #007700">;<br />    }<br />}<br /><br /></span><span style="color: #0000BB">$sınıf </span><span style="color: #007700">= </span><span style="color: #DD0000">"Sınıfım"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">call_user_func</span><span style="color: #007700">(array(</span><span style="color: #0000BB">$sınıf</span><span style="color: #007700">, </span><span style="color: #DD0000">'selam_ver'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">call_user_func</span><span style="color: #007700">(</span><span style="color: #0000BB">$sınıf </span><span style="color: #007700">.</span><span style="color: #DD0000">'::selam_ver'</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$nesne </span><span style="color: #007700">= new </span><span style="color: #0000BB">Sınıfım</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">call_user_func</span><span style="color: #007700">(array(</span><span style="color: #0000BB">$nesne</span><span style="color: #007700">, </span><span style="color: #DD0000">'selam_ver'</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>
Yukarıdaki örneğin çıktısı:</p></div>
    <div class="example-contents screen">
<div class="examplescode"><pre class="examplescode">Merhaba!
Merhaba!
Merhaba!</pre>
</div>
    </div>
   </div>
   <div class="example" id="example-5">
    <p><strong>Örnek 5 - Lamda işlevi kullanarak <span class="function"><strong>call_user_func()</strong></span>
    </strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />call_user_func</span><span style="color: #007700">(function(</span><span style="color: #0000BB">$arg</span><span style="color: #007700">) { print </span><span style="color: #DD0000">"[</span><span style="color: #0000BB">$arg</span><span style="color: #DD0000">]\n"</span><span style="color: #007700">; }, </span><span style="color: #DD0000">'test'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

    <div class="example-contents"><p>
Yukarıdaki örneğin çıktısı:</p></div>
    <div class="example-contents screen">
<div class="examplescode"><pre class="examplescode">[test]</pre>
</div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 notes" id="refsect1-function.call-user-func-notes">
  <h3 class="title">Notlar</h3>
  <blockquote class="note"><p><strong class="note">Bilginize</strong>: <p class="para">
<span class="function"><strong>call_user_func()</strong></span> ve
<span class="function"><a href="function.call-user-func-array.php" class="function">call_user_func_array()</a></span> gibi işlevlerle tanımlanmış
geriçağırım işlevleri, bir önceki geriçağırım işlevinde yavrulanmış
ve yakalanmamış bir istisna varsa çağrılmaz.</p></p></blockquote>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.call-user-func-seealso">
  <h3 class="title">Ayrıca Bakınız</h3>
  <ul class="simplelist">
   <li><span class="function"><a href="function.call-user-func-array.php" class="function" rel="rdfs-seeAlso">call_user_func_array()</a> - Bağımsız değişkenlerin bir dizi olarak verildiği geri&ccedil;ağırım işlevini
  &ccedil;ağırır</span></li>
   <li><span class="function"><a href="function.is-callable.php" class="function" rel="rdfs-seeAlso">is_callable()</a> - Bir değişkenin değerinin bir işlev olarak &ccedil;ağrılabilirliğini
  doğrular</span></li>
   <li><a href="functions.variable-functions.php" class="link">Değişken işlevler</a></li>
   <li><span class="methodname"><a href="reflectionfunction.invoke.php" class="methodname" rel="rdfs-seeAlso">ReflectionFunction::invoke()</a> - İşlevi &ccedil;ağırır</span></li>
   <li><span class="methodname"><a href="reflectionmethod.invoke.php" class="methodname" rel="rdfs-seeAlso">ReflectionMethod::invoke()</a> - Y&ouml;ntemi &ccedil;ağırır</span></li>
  </ul>
 </div>


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