function.array-change-key-case.html 5.43 KB
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  <title>&Auml;ndert alle Schl&uuml;ssel in einem Array</title>

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</div><hr /><div id="function.array-change-key-case" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">array_change_key_case</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.2.0, PHP 5)</p><p class="refpurpose"><span class="refname">array_change_key_case</span> &mdash; <span class="dc-title">Ändert alle Schlüssel in einem Array</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.array-change-key-case-description">
  <h3 class="title">Beschreibung</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">array</span> <span class="methodname"><strong>array_change_key_case</strong></span>
    ( <span class="methodparam"><span class="type">array</span> <code class="parameter">$input</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$case</code><span class="initializer"> = CASE_LOWER</span></span>
  ] )</div>

  <p class="para rdfs-comment">
   Gibt ein Array zurück, in dem alle Schlüssel aus
   <code class="parameter">input</code> in Klein- oder Großbuchstaben
   umgewandelt wurden. Numerische Indizes werden nicht geändert.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.array-change-key-case-parameters">
  <h3 class="title">Parameter-Liste</h3>
  <p class="para">
   <dl>


    
     <dt>
<code class="parameter">input</code></dt>

     <dd>

      <p class="para">
       Das Eingabe-Array
      </p>
     </dd>

    

    
     <dt>
<code class="parameter">case</code></dt>

     <dd>

      <p class="para">
       Entweder <strong><code>CASE_UPPER</code></strong> oder
       <strong><code>CASE_LOWER</code></strong> (Standard)
      </p>
     </dd>

    

   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.array-change-key-case-returnvalues">
  <h3 class="title">Rückgabewerte</h3>
  <p class="para">
   Gibt ein Array zurück, dessen Schlüssel in Klein- oder
   Großbuchstaben umgewandelt wurden, oder <strong><code>FALSE</code></strong>, wenn
   <code class="parameter">input</code> kein Array ist.
  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-function.array-change-key-case-errors">
  <h3 class="title">Fehler/Exceptions</h3>
  <p class="para">
   Wirft <strong><code>E_WARNING</code></strong>, wenn
   <code class="parameter">input</code> kein Array ist.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.array-change-key-case-examples">
  <h3 class="title">Beispiele</h3>
  <p class="para">
   <div class="example" id="function.array-change-key-case.example-1">
    <p><strong>Beispiel #1 <span class="function"><strong>array_change_key_case()</strong></span>-Beispiel</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$input_array&nbsp;</span><span style="color: #007700">=&nbsp;array(</span><span style="color: #DD0000">"FirSt"&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">1</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"SecOnd"&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">4</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">array_change_key_case</span><span style="color: #007700">(</span><span style="color: #0000BB">$input_array</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">CASE_UPPER</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>Das oben gezeigte Beispiel erzeugt folgende
Ausgabe:</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
Array
(
    [FIRST] =&gt; 1
    [SECOND] =&gt; 4
)
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 notes" id="refsect1-function.array-change-key-case-notes">
  <h3 class="title">Anmerkungen</h3>
  <blockquote class="note"><p><strong class="note">Hinweis</strong>: 
   <p class="para">
    Hat ein Array Indizes, die nach einem Durchlauf durch diese
    Funktion gleich sind (z.B. <em>&quot;keY&quot;</em> und
    <em>&quot;kEY&quot;</em>), überschreibt der
    spätere Wert im Array andere Indizes.
   </p>
  </p></blockquote>
 </div>

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