mirror of
https://github.com/sigmasternchen/php-doc-en
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96c9d88bad
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@297028 c90b9560-bf6c-de11-be94-00142212c4b1
109 lines
2.9 KiB
XML
109 lines
2.9 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.utf8-encode">
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<refnamediv>
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<refname>utf8_encode</refname>
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<refpurpose>Encodes an ISO-8859-1 string to UTF-8</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>string</type><methodname>utf8_encode</methodname>
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<methodparam><type>string</type><parameter>data</parameter></methodparam>
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</methodsynopsis>
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<para>
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This function encodes the string <parameter>data</parameter> to
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<literal>UTF-8</literal>, and returns the encoded version.
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<literal>UTF-8</literal> is a standard mechanism used by
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<acronym>Unicode</acronym> for encoding <glossterm>wide
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character</glossterm> values into a byte stream.
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<literal>UTF-8</literal> is transparent to plain <abbrev>ASCII</abbrev>
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characters, is self-synchronized (meaning it is possible for a program to
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figure out where in the bytestream characters start) and can be used with
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normal string comparison functions for sorting and such. PHP encodes
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<literal>UTF-8</literal> characters in up to four bytes, like this:
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<table>
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<title>UTF-8 encoding</title>
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<tgroup cols="3">
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<thead>
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<row>
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<entry>bytes</entry>
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<entry>bits</entry>
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<entry>representation</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>1</entry>
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<entry>7</entry>
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<entry>0bbbbbbb</entry>
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</row>
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<row>
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<entry>2</entry>
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<entry>11</entry>
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<entry>110bbbbb 10bbbbbb</entry>
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</row>
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<row>
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<entry>3</entry>
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<entry>16</entry>
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<entry>1110bbbb 10bbbbbb 10bbbbbb</entry>
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</row>
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<row>
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<entry>4</entry>
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<entry>21</entry>
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<entry>11110bbb 10bbbbbb 10bbbbbb 10bbbbbb</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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Each <replaceable>b</replaceable> represents a bit that can be
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used to store character data.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>data</parameter></term>
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<listitem>
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<para>
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An ISO-8859-1 string.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Returns the UTF-8 translation of <parameter>data</parameter>.
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</para>
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</refsect1>
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</refentry>
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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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