php-doc-en/reference/zlib/book.xml
Christoph Michael Becker 5f8047c12b Document new opaque classes which replace resources
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@351932 c90b9560-bf6c-de11-be94-00142212c4b1
2020-12-06 22:11:40 +00:00

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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<book xml:id="book.zlib" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<?phpdoc extension-membership="bundled" ?>
<title>Zlib Compression</title>
<titleabbrev>Zlib</titleabbrev>
<!-- {{{ preface -->
<preface xml:id="intro.zlib">
&reftitle.intro;
<para>
This module enables you to transparently read and write
gzip (.gz) compressed files, through versions of most of
the <link linkend="book.filesystem">filesystem</link> functions
which work with gzip-compressed files (and uncompressed files,
too, but not with sockets).
</para>
<note>
<para>
Version 4.0.4 introduced a fopen-wrapper for <filename>.gz</filename>-files, so that
you can use a special <filename>zlib:</filename> URL to access
compressed files transparently using the normal f*() file access
functions if you prefix the filename or path with
<filename>zlib:</filename> when calling <function>fopen</function>. This
feature requires a C runtime library that provides the
<literal>fopencookie()</literal> function. Up to now the GNU libc
seems to be the only library that provides this feature.
</para>
<para>
In PHP 4.3.0, <filename>zlib:</filename> has been changed to
<filename>compress.zlib://</filename> to prevent ambiguities with
filenames containing '<literal>:</literal>' characters. The
<literal>fopencookie()</literal> function is no longer required.
More information is available in the section about
<xref linkend="wrappers.compression" />.
</para>
</note>
</preface>
<!-- }}} -->
&reference.zlib.setup;
&reference.zlib.constants;
&reference.zlib.examples;
&reference.zlib.reference;
&reference.zlib.deflatecontext;
&reference.zlib.inflatecontext;
</book>
<!-- 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
-->