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mb-convert-case.xml
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178 lines (170 loc) · 5.59 KB
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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: d6f54016d62904cfd8200604aadd5e3f0d9bad97 Maintainer: daijie Status: ready -->
<!-- CREDITS: mowangjuanzi, Luffy -->
<refentry xml:id="function.mb-convert-case" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>mb_convert_case</refname>
<refpurpose>对字符串进行大小写转换</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>mb_convert_case</methodname>
<methodparam><type>string</type><parameter>string</parameter></methodparam>
<methodparam><type>int</type><parameter>mode</parameter></methodparam>
<methodparam choice="opt"><type class="union"><type>string</type><type>null</type></type><parameter>encoding</parameter><initializer>&null;</initializer></methodparam>
</methodsynopsis>
<para>
对一个 <type>string</type> 进行大小写转换,转换模式由 <parameter>mode</parameter> 指定。
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>string</parameter></term>
<listitem>
<para>
要被转换的 <type>string</type>。
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>mode</parameter></term>
<listitem>
<para>
转换的模式。它可以是
<constant>MB_CASE_UPPER</constant>、<constant>MB_CASE_LOWER</constant>、<constant>MB_CASE_TITLE</constant>、<constant>MB_CASE_FOLD</constant>、<constant>MB_CASE_UPPER_SIMPLE</constant>、<constant>MB_CASE_LOWER_SIMPLE</constant>、<constant>MB_CASE_TITLE_SIMPLE</constant>、<constant>MB_CASE_FOLD_SIMPLE</constant>
的其中一个。
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>encoding</parameter></term>
<listitem>
&mbstring.encoding.parameter;
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
按 <parameter>mode</parameter> 指定的模式转换 <parameter>string</parameter> 大小写后的版本。
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.3.0</entry>
<entry>
为希腊字母 Sigma 实现了条件性大小写规则,
仅适用于 <constant>MB_CASE_LOWER</constant> 和 <constant>MB_CASE_TITLE</constant> 模式,
不适用于 <constant>MB_CASE_LOWER_SIMPLE</constant> 和 <constant>MB_CASE_TITLE_SIMPLE</constant>。
</entry>
</row>
<row>
<entry>7.3.0</entry>
<entry>
添加对 <constant>MB_CASE_FOLD</constant>、<constant>MB_CASE_UPPER_SIMPLE</constant>、<constant>MB_CASE_LOWER_SIMPLE</constant>、<constant>MB_CASE_TITLE_SIMPLE</constant> 和
<constant>MB_CASE_FOLD_SIMPLE</constant> 作为 <parameter>mode</parameter> 的支持。
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>mb_convert_case</function> 示例</title>
<programlisting role="php">
<![CDATA[
<?php
$str = "mary had a Little lamb and she loved it so";
$str = mb_convert_case($str, MB_CASE_UPPER, "UTF-8");
echo $str, PHP_EOL;
$str = mb_convert_case($str, MB_CASE_TITLE, "UTF-8");
echo $str, PHP_EOL;
?>
]]>
</programlisting>
</example>
</para>
<para>
<example>
<title>非拉丁 UTF-8 文本的 <function>mb_convert_case</function> 示例</title>
<programlisting role="php">
<![CDATA[
<?php
$str = "Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός";
$str = mb_convert_case($str, MB_CASE_UPPER, "UTF-8");
echo $str, PHP_EOL;
$str = mb_convert_case($str, MB_CASE_TITLE, "UTF-8");
echo $str, PHP_EOL;
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
<para>
和类似 <function>strtolower</function>、<function>strtoupper</function> 的标准大小写转换函数相比,大小写转换的执行根据
Unicode 字符属性的基础。因此函数的行为不受语言环境(locale)设置的影响,能够转换任意具有“字母”属性的字符,例如元音变音A(Ä)。
</para>
<para>
更多关于 Unicode 属性的信息,请查看 <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_strtoupper</function></member>
<member><function>strtolower</function></member>
<member><function>strtoupper</function></member>
<member><function>ucfirst</function></member>
<member><function>ucwords</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->