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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<chapter xml:id="zlib.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
&reftitle.examples;
<para>
This example opens a temporary file and writes a test string
to it, then it prints out the content of this file twice.
</para>
<example>
<title>Small Zlib Example</title>
<programlisting role="php">
<![CDATA[
<?php
$filename = tempnam('/tmp', 'zlibtest') . '.gz';
echo "<html>\n<head></head>\n<body>\n<pre>\n";
$s = "Only a test, test, test, test, test, test, test, test!\n";
// open file for writing with maximum compression
$zp = gzopen($filename, "w9");
// write string to file
gzwrite($zp, $s);
// close file
gzclose($zp);
// open file for reading
$zp = gzopen($filename, "r");
// read 3 char
echo gzread($zp, 3);
// output until end of the file and close it.
gzpassthru($zp);
gzclose($zp);
echo "\n";
// open file and print content (the 2nd time).
if (readgzfile($filename) != strlen($s)) {
echo "Error with zlib functions!";
}
unlink($filename);
echo "</pre>\n</body>\n</html>\n";
?>
]]>
</programlisting>
</example>
<example>
<title>Working with the incremental compression and decompression API</title>
<programlisting role="php">
<![CDATA[
<?php
// Perform GZIP compression:
$deflateContext = deflate_init(ZLIB_ENCODING_GZIP);
$compressed = deflate_add($deflateContext, "Data to compress", ZLIB_NO_FLUSH);
$compressed .= deflate_add($deflateContext, ", more data", ZLIB_NO_FLUSH);
$compressed .= deflate_add($deflateContext, ", and even more data!", ZLIB_FINISH);
// Perform GZIP decompression:
$inflateContext = inflate_init(ZLIB_ENCODING_GZIP);
$uncompressed = inflate_add($inflateContext, $compressed, ZLIB_NO_FLUSH);
$uncompressed .= inflate_add($inflateContext, NULL, ZLIB_FINISH);
echo $uncompressed;
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
Data to compress, more data, and even more data!
]]>
</screen>
</example>
</chapter>
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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
-->
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