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<div id="function.substr-replace" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">substr_replace</h1>
  <p class="verinfo">(PHP 4, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">substr_replace</span> &mdash; <span class="dc-title">Bir dizgenin belli bir bölümünü değiştirir</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.substr-replace-description">
  <h3 class="title">Açıklama</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>substr_replace</strong></span>(<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><span class="type"><a href="language.types.array.php" class="type array">array</a></span>|<span class="type"><a href="language.types.string.php" class="type string">string</a></span></span> <code class="parameter">$dizge</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><span class="type"><a href="language.types.array.php" class="type array">array</a></span>|<span class="type"><a href="language.types.string.php" class="type string">string</a></span></span> <code class="parameter">$yenisi</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><span class="type"><a href="language.types.array.php" class="type array">array</a></span>|<span class="type"><a href="language.types.integer.php" class="type int">int</a></span></span> <code class="parameter">$başlangıç</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><span class="type"><a href="language.types.array.php" class="type array">array</a></span>|<span class="type"><a href="language.types.integer.php" class="type int">int</a></span>|<span class="type"><a href="language.types.null.php" class="type null">null</a></span></span> <code class="parameter">$uzunluk</code><span class="initializer"> = <strong><code><a href="reserved.constants.php#constant.null">null</a></code></strong></span></span><br>): <span class="type"><span class="type"><a href="language.types.string.php" class="type string">string</a></span>|<span class="type"><a href="language.types.array.php" class="type array">array</a></span></span></div>

  <p class="para rdfs-comment">
   <span class="function"><strong>substr_replace()</strong></span> işlevi
   <code class="parameter">dizge</code> dizgesinin
   <code class="parameter">başlangıç</code> (seçimlik) konumundan itibaren
   <code class="parameter">uzunluk</code> karakterlik parçasının yerine
   <code class="parameter">yenisi</code> dizgesini yerleştirir.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.substr-replace-parameters">
  <h3 class="title">Bağımsız Değişkenler</h3>
  <p class="para">
   <dl>
    
     <dt><code class="parameter">dizge</code></dt>
     <dd>
      <p class="para">
       Girdi dizgesi.
      </p>
      <p class="para">
       Bir dizgeler dizisi belirtilmesi durumunda değiştirme işlemi her elemana
       uygulanır. Bu durumda, her elemana karşı düşen
       <code class="parameter">yenisi</code>, <code class="parameter">başlangıç</code> ve
       <code class="parameter">uzunluk</code> değerlerini içeren diziler de
       belirtilebilir.
      </p>
     </dd>
    
    
     <dt><code class="parameter">yenisi</code></dt>
     <dd>
      <p class="para">
       Değiştirilecek kısma yerleştirilecek dizge.
      </p>
     </dd>
    
    
     <dt><code class="parameter">başlangıç</code></dt>
     <dd>
      <p class="para">
       Eğer <code class="parameter">başlangıç</code> negatif değilse, yer değiştirme
       işlemi <code class="parameter">dizge</code> dizgesinin baştan
       <code class="parameter">başlangıç</code>&#039;ıncı karakterinden başlar.
      </p>
      <p class="para">
       Eğer <code class="parameter">başlangıç</code> negatifse, yer değiştirme
       işlemi <code class="parameter">dizge</code> dizgesinin sondan
       <code class="parameter">başlangıç</code>&#039;ıncı karakterinden başlar.
      </p>
     </dd>
    
    
     <dt><code class="parameter">uzunluk</code></dt>
     <dd>
      <p class="para">
       Belirtilmiş ve pozitifse, <code class="parameter">dizge</code> dizgesinin
       değiştirilecek parçasının uzunluğudur; negatif ise,
       <code class="parameter">dizge</code> dizgesinin sonundan itibaren
       yerleştirmenin durdurulacağı karakter sayısıdır. Belirtilmezse,
       strlen(<code class="parameter">dizge</code>) öntanımlıdır, yani yerleştirme
       işlemi dizgenin sonunda biter. <code class="parameter">uzunluk</code> sıfırsa,
       <code class="parameter">yenisi</code> dizgesi <code class="parameter">dizge</code>
       dizgesine <code class="parameter">başlangıç</code> (seçimlik) konumundan
       itibaren yerleştirir.
      </p>
     </dd>
    
   </dl>
  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.substr-replace-returnvalues">
  <h3 class="title">Dönen Değerler</h3>
  <p class="para">
   Elde edilen dizge döner. <code class="parameter">dizge</code> bir dizi ise bir dizi
   döner.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.substr-replace-changelog">
  <h3 class="title">Sürüm Bilgisi</h3>
  <p class="para">
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>Sürüm: </th>
       <th>Açıklama</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>8.0.0</td>
       <td>
        <code class="parameter">uzunluk</code> artık <strong><code><a href="reserved.constants.php#constant.null">null</a></code></strong> olabiliyor.
       </td>
      </tr>

     </tbody>
    
   </table>

  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.substr-replace-examples">
  <h3 class="title">Örnekler</h3>
  <p class="para">
   <div class="example" id="example-1">
    <p><strong>Örnek 1 - <span class="function"><strong>substr_replace()</strong></span> örnekleri</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$var </span><span style="color: #007700">= </span><span style="color: #DD0000">'ABCDEFGH:/MNRPQR/'</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">"Original: </span><span style="color: #0000BB">$var</span><span style="color: #DD0000">&lt;hr /&gt;\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Bu iki örnek $var dizgesinin tamamını 'bob' yapar. */<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">substr_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$var</span><span style="color: #007700">, </span><span style="color: #DD0000">'bob'</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">) . </span><span style="color: #DD0000">"&lt;br /&gt;\n"</span><span style="color: #007700">;<br />echo </span><span style="color: #0000BB">substr_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$var</span><span style="color: #007700">, </span><span style="color: #DD0000">'bob'</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">strlen</span><span style="color: #007700">(</span><span style="color: #0000BB">$var</span><span style="color: #007700">)) . </span><span style="color: #DD0000">"&lt;br /&gt;\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* 'bob' $var dizgesine dizgenin başından itibaren yerleştirilir. */<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">substr_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$var</span><span style="color: #007700">, </span><span style="color: #DD0000">'bob'</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">) . </span><span style="color: #DD0000">"&lt;br /&gt;\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Bu ikisi $var içindeki 'MNRPQR' yerine 'bob' yerleştirir. */<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">substr_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$var</span><span style="color: #007700">, </span><span style="color: #DD0000">'bob'</span><span style="color: #007700">, </span><span style="color: #0000BB">10</span><span style="color: #007700">, -</span><span style="color: #0000BB">1</span><span style="color: #007700">) . </span><span style="color: #DD0000">"&lt;br /&gt;\n"</span><span style="color: #007700">;<br />echo </span><span style="color: #0000BB">substr_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$var</span><span style="color: #007700">, </span><span style="color: #DD0000">'bob'</span><span style="color: #007700">, -</span><span style="color: #0000BB">7</span><span style="color: #007700">, -</span><span style="color: #0000BB">1</span><span style="color: #007700">) . </span><span style="color: #DD0000">"&lt;br /&gt;\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* $var dizgesinin 'MNRPQR' parçasını siler. */<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">substr_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$var</span><span style="color: #007700">, </span><span style="color: #DD0000">''</span><span style="color: #007700">, </span><span style="color: #0000BB">10</span><span style="color: #007700">, -</span><span style="color: #0000BB">1</span><span style="color: #007700">) . </span><span style="color: #DD0000">"&lt;br /&gt;\n"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

   </div>
  </p>
  <p class="para">
   <div class="example" id="example-2">
    <p><strong>Örnek 2 - Çok sayıda dizgeyi bir kerede değiştirmek için
     <span class="function"><strong>substr_replace()</strong></span> kullanımı</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$input </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'A: XXX'</span><span style="color: #007700">, </span><span style="color: #DD0000">'B: XXX'</span><span style="color: #007700">, </span><span style="color: #DD0000">'C: XXX'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Basit durum: her dizgede XXX yerine YYY yerleştir.<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">implode</span><span style="color: #007700">(</span><span style="color: #DD0000">'; '</span><span style="color: #007700">, </span><span style="color: #0000BB">substr_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$input</span><span style="color: #007700">, </span><span style="color: #DD0000">'YYY'</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">)).</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// Her değiştirmenin farklı olduğu daha karmaşık durum<br /></span><span style="color: #0000BB">$replace </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'AAA'</span><span style="color: #007700">, </span><span style="color: #DD0000">'BBB'</span><span style="color: #007700">, </span><span style="color: #DD0000">'CCC'</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">implode</span><span style="color: #007700">(</span><span style="color: #DD0000">'; '</span><span style="color: #007700">, </span><span style="color: #0000BB">substr_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$input</span><span style="color: #007700">, </span><span style="color: #0000BB">$replace</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">)).</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// Her defasında farklı sayıda karakteri değiştirmek.<br /></span><span style="color: #0000BB">$length </span><span style="color: #007700">= 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: #0000BB">3</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">implode</span><span style="color: #007700">(</span><span style="color: #DD0000">'; '</span><span style="color: #007700">, </span><span style="color: #0000BB">substr_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$input</span><span style="color: #007700">, </span><span style="color: #0000BB">$replace</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">, </span><span style="color: #0000BB">$length</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="examplescode"><pre class="examplescode">A: YYY; B: YYY; C: YYY
A: AAA; B: BBB; C: CCC
A: AAAXX; B: BBBX; C: CCC</pre>
</div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 notes" id="refsect1-function.substr-replace-notes">
  <h3 class="title">Notlar</h3>
  <blockquote class="note"><p><strong class="note">Bilginize</strong>: 
<span class="simpara">Bu işlev ikil dosyalarla çalışırken
dosya içeriğini değiştirmez.</span></p></blockquote>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.substr-replace-seealso">
  <h3 class="title">Ayrıca Bakınız</h3>
  <p class="para">
   <ul class="simplelist">
    <li><span class="function"><a href="function.str-replace.php" class="function" rel="rdfs-seeAlso">str_replace()</a> - Bir alt dizgenin b&uuml;t&uuml;n &ouml;rneklerini yenisiyle değiştirir</span></li>
    <li><span class="function"><a href="function.substr.php" class="function" rel="rdfs-seeAlso">substr()</a> - Dizgenin bir kısmını d&ouml;nd&uuml;r&uuml;r</span></li>
    <li><a href="language.types.string.php#language.types.string.substr" class="link">Dizge erişimi ve
     karaktere göre değişiklik</a></li>
   </ul>
  </p>
 </div>


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