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102 lines
2.6 KiB
XML
102 lines
2.6 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- EN-Revision: 4691b6ddbdf4058b2190e123e31e25af0abd319d Maintainer: pastore Status: ready -->
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<chapter xml:id="zlib.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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&reftitle.examples;
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<para>
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Questo esempio apre un file temporaneo e scrive una stringa di prova
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in esso, quindi stampa il contenuto di questo file due volte.
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</para>
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<example>
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<title>Piccolo Esempio di Zlib</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$filename = tempnam('/tmp', 'zlibtest') . '.gz';
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echo "<html>\n<head></head>\n<body>\n<pre>\n";
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$s = "Only a test, test, test, test, test, test, test, test!\n";
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// apre il file in scrittura con la massima compressione
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$zp = gzopen($filename, "w9");
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// scrive una stringa nel file
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gzwrite($zp, $s);
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// chiude il file
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gzclose($zp);
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// apre il file in lettura
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$zp = gzopen($filename, "r");
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// legge 3 caratteri
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echo gzread($zp, 3);
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// stampa fino alla fine del file e lo chiude.
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gzpassthru($zp);
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gzclose($zp);
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echo "\n";
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// apre il file e stampa il contenuto (per la seconda volta).
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if (readgzfile($filename) != strlen($s)) {
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echo "Error with zlib functions!";
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}
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unlink($filename);
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echo "</pre>\n</body>\n</html>\n";
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?>
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]]>
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</programlisting>
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</example>
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<example>
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<title>Utilizzo dell'API di compressione e decompressione incrementale a partire da PHP 7.0.0</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// Esegue la compressione GZIP:
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$deflateContext = deflate_init(ZLIB_ENCODING_GZIP);
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$compressed = deflate_add($deflateContext, "Data to compress", ZLIB_NO_FLUSH);
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$compressed .= deflate_add($deflateContext, ", more data", ZLIB_NO_FLUSH);
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$compressed .= deflate_add($deflateContext, ", and even more data!", ZLIB_FINISH);
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// Esegue la decompressione GZIP:
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$inflateContext = inflate_init(ZLIB_ENCODING_GZIP);
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$uncompressed = inflate_add($inflateContext, $compressed, ZLIB_NO_FLUSH);
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$uncompressed .= inflate_add($inflateContext, NULL, ZLIB_FINISH);
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echo $uncompressed;
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?>
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]]>
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</programlisting>
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&example.outputs;
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<screen>
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<![CDATA[
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Data to compress, more data, and even more data!
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]]>
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</screen>
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</example>
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</chapter>
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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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