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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<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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