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<div id="intlchar.toupper" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">IntlChar::toupper</h1>
  <p class="verinfo">(PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">IntlChar::toupper</span> &mdash; <span class="dc-title">Make Unicode character uppercase</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-intlchar.toupper-description">
  <h3 class="title">Beschreibung</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="modifier">static</span> <span class="methodname"><strong>IntlChar::toupper</strong></span>(<span class="methodparam"><span class="type"><span class="type"><a href="language.types.integer.php" class="type int">int</a></span>|<span class="type"><a href="language.types.string.php" class="type string">string</a></span></span> <code class="parameter">$codepoint</code></span>): <span class="type"><span class="type"><a href="language.types.integer.php" class="type int">int</a></span>|<span class="type"><a href="language.types.string.php" class="type string">string</a></span>|<span class="type"><a href="language.types.null.php" class="type null">null</a></span></span></div>

  <p class="para rdfs-comment">
   The given character is mapped to its uppercase equivalent.
   If the character has no uppercase equivalent, the character itself is returned.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-intlchar.toupper-parameters">
  <h3 class="title">Parameter-Liste</h3>
  <dl>
   
    <dt><code class="parameter">codepoint</code></dt>
    <dd>
     <p class="para">Ein Wert vom Typ <span class="type"><a href="language.types.integer.php" class="type int">int</a></span>, der einen Codepoint darstellt (z. B. <code class="literal">0x2603</code> für <em>U+2603 SNOWMAN</em>) oder ein als UTF-8-<span class="type"><a href="language.types.string.php" class="type String">String</a></span> kodiertes Zeichen (z. B. <code class="literal">&quot;\u{2603}&quot;</code>)</p>
    </dd>
   
  </dl>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-intlchar.toupper-returnvalues">
  <h3 class="title">Rückgabewerte</h3>
  <p class="para">
   Returns the Simple_Uppercase_Mapping of the code point, if any;
   otherwise the code point itself.
  </p>
  <p class="para">Der Rückgabetyp ist <span class="type"><a href="language.types.integer.php" class="type int">int</a></span>, außer der Codepoint wurde als UTF-8-<span class="type"><a href="language.types.string.php" class="type String">String</a></span> übergeben, in welchem Fall ein <span class="type"><a href="language.types.string.php" class="type String">String</a></span> zurückgegeben wird. Bei einem Fehler wird <strong><code><a href="reserved.constants.php#constant.null">null</a></code></strong> zurückgegeben.</p>
 </div>


 <div class="refsect1 examples" id="refsect1-intlchar.toupper-examples">
  <h3 class="title">Beispiele</h3>
  <div class="example" id="example-1">
   <p><strong>Beispiel #1 Testen unterschiedlicher Codepoints</strong></p>
   <div class="example-contents">
    <div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">toupper</span><span style="color: #007700">(</span><span style="color: #DD0000">"A"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">toupper</span><span style="color: #007700">(</span><span style="color: #DD0000">"a"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">toupper</span><span style="color: #007700">(</span><span style="color: #DD0000">"Φ"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">toupper</span><span style="color: #007700">(</span><span style="color: #DD0000">"φ"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">toupper</span><span style="color: #007700">(</span><span style="color: #DD0000">"1"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">toupper</span><span style="color: #007700">(</span><span style="color: #0000BB">ord</span><span style="color: #007700">(</span><span style="color: #DD0000">"A"</span><span style="color: #007700">)));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">toupper</span><span style="color: #007700">(</span><span style="color: #0000BB">ord</span><span style="color: #007700">(</span><span style="color: #DD0000">"a"</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="examplescode"><pre class="examplescode">string(1) &quot;A&quot;
string(1) &quot;A&quot;
string(2) &quot;Φ&quot;
string(2) &quot;Φ&quot;
string(1) &quot;1&quot;
int(65)
int(65)</pre>
</div>
   </div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-intlchar.toupper-seealso">
  <h3 class="title">Siehe auch</h3>
  <p class="para">
   <ul class="simplelist">
    <li><span class="function"><a href="intlchar.tolower.php" class="function" rel="rdfs-seeAlso">IntlChar::tolower()</a> - Make Unicode character lowercase</span></li>
    <li><span class="function"><a href="intlchar.totitle.php" class="function" rel="rdfs-seeAlso">IntlChar::totitle()</a> - Make Unicode character titlecase</span></li>
    <li><span class="function"><a href="function.mb-strtoupper.php" class="function" rel="rdfs-seeAlso">mb_strtoupper()</a> - Make a string uppercase</span></li>
   </ul>
  </p>
 </div>


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