mirror of
https://github.com/sigmasternchen/php-doc-en
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1634a88641
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@330340 c90b9560-bf6c-de11-be94-00142212c4b1
74 lines
2.7 KiB
XML
74 lines
2.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<book xml:id="book.mbstring" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<?phpdoc extension-membership="bundled" ?>
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<title>Multibyte String</title>
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<!-- {{{ preface -->
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<preface xml:id="intro.mbstring">
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&reftitle.intro;
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<para>
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While there are many languages in which every necessary character can
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be represented by a one-to-one mapping to an 8-bit value, there are also
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several languages which require so many characters for written
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communication that they cannot be contained within the range a mere byte
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can code (A byte is made up of eight bits. Each bit can contain only two
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distinct values, one or zero. Because of this, a byte can only represent
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256 unique values (two to the power of eight)). Multibyte character
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encoding schemes were developed to express more than 256 characters
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in the regular bytewise coding system.
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</para>
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<para>
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When you manipulate (trim, split, splice, etc.) strings encoded in a
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multibyte encoding, you need to use special functions since two or more
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consecutive bytes may represent a single character in such encoding
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schemes. Otherwise, if you apply a non-multibyte-aware string function
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to the string, it probably fails to detect the beginning or ending of
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the multibyte character and ends up with a corrupted garbage string that
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most likely loses its original meaning.
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</para>
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<para>
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<literal>mbstring</literal> provides multibyte specific string functions
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that help you deal with multibyte encodings in PHP. In addition to that,
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<literal>mbstring</literal> handles character encoding conversion between
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the possible encoding pairs. <literal>mbstring</literal> is designed to
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handle Unicode-based encodings such as UTF-8 and UCS-2 and many
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single-byte encodings for convenience (listed below).
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</para>
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</preface>
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<!-- }}} -->
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&reference.mbstring.setup;
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&reference.mbstring.constants;
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&reference.mbstring.encodings;
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&reference.mbstring.ja-basic;
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&reference.mbstring.http-inout;
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&reference.mbstring.supported-encodings;
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&reference.mbstring.overloading;
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&reference.mbstring.encoding-requirements;
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&reference.mbstring.reference;
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</book>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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