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<refentry xml:id="function.mb-strtoupper" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>mb_strtoupper</refname>
  <refpurpose>Make a string uppercase</refpurpose>
 </refnamediv>
   
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>mb_strtoupper</methodname>
   <methodparam><type>string</type><parameter>string</parameter></methodparam>
   <methodparam choice="opt"><type class="union"><type>string</type><type>null</type></type><parameter>encoding</parameter><initializer>&null;</initializer></methodparam>
  </methodsynopsis>
  <para>
   Returns <parameter>string</parameter>
   with all alphabetic characters converted to uppercase.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>string</parameter></term>
     <listitem>
      <para>
       The <type>string</type> being uppercased.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>encoding</parameter></term>
     <listitem>
      &mbstring.encoding.parameter;
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   <parameter>string</parameter> with all alphabetic characters converted to uppercase.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>mb_strtoupper</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$str = "Mary Had A Little Lamb and She LOVED It So";
$str = mb_strtoupper($str);
echo $str; // Prints MARY HAD A LITTLE LAMB AND SHE LOVED IT SO
?>
]]>
    </programlisting>
   </example>
  </para>

  <para>
   <example>
    <title><function>mb_strtoupper</function> example with non-Latin UTF-8 text</title>
    <programlisting role="php">
<![CDATA[
<?php
$str = "Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός";
$str = mb_strtoupper($str, 'UTF-8');
echo $str; // Prints ΤΆΧΙΣΤΗ ΑΛΏΠΗΞ ΒΑΦΉΣ ΨΗΜΈΝΗ ΓΗ, ΔΡΑΣΚΕΛΊΖΕΙ ΥΠΈΡ ΝΩΘΡΟΎ ΚΥΝΌΣ
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="notes">
  &reftitle.notes;
  <para>
   By contrast to <function>strtoupper</function>, 'alphabetic' is
   determined by the Unicode character properties. Thus the behaviour of this
   function is not affected by locale settings and it can convert any
   characters that have 'alphabetic' property, such as a-umlaut (ä).
  </para>
  <para>
   For more information about the Unicode properties, please see <link
   xlink:href="&url.unicode.reports;">&url.unicode.reports;</link>.
  </para>
 </refsect1>
 
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>mb_strtolower</function></member>
    <member><function>mb_convert_case</function></member>
    <member><function>strtoupper</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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