mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-15 08:28:54 +00:00

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@345239 c90b9560-bf6c-de11-be94-00142212c4b1
166 lines
5.9 KiB
XML
166 lines
5.9 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
|
|
<!-- $Revision$ -->
|
|
|
|
<sect1 xml:id="migration71.windows-support" xmlns:xlink="http://www.w3.org/1999/xlink">
|
|
<title>Windows Support</title>
|
|
|
|
<sect2 xml:id="migration71.windows-support.long-and-utf8-path">
|
|
<title>Support for long and UTF-8 path</title>
|
|
<para>
|
|
If a web application is UTF-8 conform, no further action is required. For
|
|
applications depending on paths in non UTF-8 encodings for I/O, an explicit
|
|
INI directive has to be set. The encoding INI settings check relies on the
|
|
order in the core:
|
|
</para>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<simpara>
|
|
internal_encoding
|
|
</simpara>
|
|
</listitem>
|
|
<listitem>
|
|
<simpara>
|
|
default_charset
|
|
</simpara>
|
|
</listitem>
|
|
<listitem>
|
|
<simpara>
|
|
zend.multibyte
|
|
</simpara>
|
|
</listitem>
|
|
</itemizedlist>
|
|
<para>
|
|
Several functions for codepage handling were introduced:
|
|
</para>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<simpara>
|
|
sapi_windows_cp_set() to set the default codepage
|
|
</simpara>
|
|
</listitem>
|
|
<listitem>
|
|
<simpara>
|
|
sapi_windows_cp_get() to retrieve the current codepage
|
|
</simpara>
|
|
</listitem>
|
|
<listitem>
|
|
<simpara>
|
|
sapi_windows_cp_is_utf8()
|
|
</simpara>
|
|
</listitem>
|
|
<listitem>
|
|
<simpara>
|
|
sapi_windows_cp_conv() to convert between codepages, using iconv() compatible signature
|
|
</simpara>
|
|
</listitem>
|
|
</itemizedlist>
|
|
<para>
|
|
These functions are thread safe.
|
|
</para>
|
|
<para>
|
|
The console output codepage is adjusted depending on the encoding used in
|
|
PHP. Depending on the concrete system OEM codepage, the visible output
|
|
might or might be not correct. For example, in the default cmd.exe and on
|
|
a system with the OEM codepage 437, outputs in codepages 1251, 1252, 1253
|
|
and some others can be shown correctly when using UTF-8. On the same system,
|
|
chars in codepage like 20932 probably won't be shown correctly. This refers
|
|
to the particular system rules for codepage, font compatibility and the
|
|
particular console program used. PHP automatically sets the console codepage
|
|
according to the encoding rules from php.ini. Using alternative consoles
|
|
instead of cmd.exe directly might bring better experience in some cases.
|
|
</para>
|
|
<para>
|
|
Nevertheless be aware, runtime codepage switch after the request start
|
|
might bring unexpected side effects on CLI. The preferable way is php.ini,
|
|
When PHP CLI is used in a console emulator, that doesn't support Unicode,
|
|
it might possibly be required, to avoid changing the console codepage. The
|
|
best way to achieve it is by setting the default or internal encoding to
|
|
correspond the ANSI codepage. Another method is to set the INI directives
|
|
output_encoding and input_encoding to the required codepage, in which case
|
|
however the difference between internal and I/O codepage is likely to cause
|
|
mojibake. In rare cases, if PHP happens to crash gracefully, the original
|
|
console codepage might be not restored. In this case, the chcp command
|
|
can be used, to restore it manually.
|
|
</para>
|
|
<para>
|
|
Special awareness for the DBCS systems - the codepage switch on runtime
|
|
using <function>ini_set</function> is likely to cause display issues. The difference to the
|
|
non DBCS systems is, that the extended characters require two console cells
|
|
to be displayed. In certain case, only the mapping of the characters into
|
|
the glyph set of the font could happen, no actual font change. This is the
|
|
nature of DBCS systems, the most simple way to prevent display issues is
|
|
to avoid usage of <function>ini_set</function> for the codepage change.
|
|
</para>
|
|
<para>
|
|
As a result of UTF-8 support in the streams, PHP scripts are not limited
|
|
to ASCII or ANSI filenames anymore. This is supported out of the box on
|
|
CLI. For other SAPI, the documentation for the corresponding server
|
|
is useful.
|
|
</para>
|
|
<para>
|
|
Long paths support is transparent. Paths longer than 260 bytes get
|
|
automatically prefixed with <literal>\\?\</literal>. The max path length is limited to
|
|
2048 bytes. Be aware, that the path segment limit (basename length) still
|
|
persists.
|
|
</para>
|
|
<para>
|
|
For the best portability, it is strongely recommended to handle filenames,
|
|
I/O and other related topics UTF-8. Additionally, for the console applications,
|
|
the usage of a TrueType font is preferable and the usage of ini_set() for
|
|
the codepage change is discouraged.
|
|
</para>
|
|
<para>
|
|
</para>
|
|
<para>
|
|
</para>
|
|
</sect2>
|
|
|
|
<sect2 xml:id="migration71.windows-support.readline">
|
|
<title>readline</title>
|
|
|
|
<para>
|
|
The <link linkend="book.readline">readline extension</link> is supported
|
|
through the <link xlink:href="&url.readline.windows;">WinEditLine
|
|
library</link>. Thereby, the interactive <acronym>CLI</acronym> shell is
|
|
supported as well (<literal>php.exe -a</literal>).
|
|
</para>
|
|
</sect2>
|
|
|
|
<sect2 xml:id="migration71.windows-support.php-fcgi-children">
|
|
<title>PHP_FCGI_CHILDREN</title>
|
|
<para>
|
|
<varname>PHP_FCGI_CHILDREN</varname> is now respected. If this environment variable is
|
|
defined, the first <filename>php-cgi.exe</filename> process will exec the specified number
|
|
of children. These will share the same TCP socket.
|
|
</para>
|
|
</sect2>
|
|
|
|
<sect2 xml:id="migration71.windows-support.ftok">
|
|
<title>ftok()</title>
|
|
<para>
|
|
Added support for <function>ftok</function>
|
|
</para>
|
|
</sect2>
|
|
|
|
</sect1>
|
|
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
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
|
|
-->
|