php-doc-en/reference/phar/PharFileInfo/decompress.xml
2021-06-11 11:01:17 +03:00

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<?xml version="1.0" encoding="utf-8"?>
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="pharfileinfo.decompress">
<refnamediv>
<refname>PharFileInfo::decompress</refname>
<refpurpose>Decompresses the current Phar entry within the phar</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>bool</type><methodname>PharFileInfo::decompress</methodname>
<void/>
</methodsynopsis>
<para>
This method decompresses the file inside the Phar archive.
Depending on how the file is compressed, the <link linkend="ref.bzip2">bzip2</link>
or <link linkend="ref.zlib">zlib</link> extensions must be enabled to take
advantage of this feature. As with all functionality that modifies the contents of
a phar, the <link linkend="ini.phar.readonly">phar.readonly</link> INI variable
must be off in order to succeed if the file is within a <classname>Phar</classname>
archive. Files within <classname>PharData</classname> archives do not have
this restriction.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
&no.function.parameters;
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
<para>
Throws <classname>BadMethodCallException</classname> if
the <link linkend="ini.phar.readonly">phar.readonly</link>
INI variable is on, or if the <link linkend="ref.bzip2">bzip2</link>/<link linkend="ref.zlib">zlib</link>
extension is not available.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>A <function>PharFileInfo::decompress</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
try {
$p = new Phar('/path/to/my.phar', 0, 'my.phar');
$p['myfile.txt'] = 'hi';
$file = $p['myfile.txt'];
$file->compress(Phar::GZ);
var_dump($file->isCompressed());
$p['myfile.txt']->decompress();
var_dump($file->isCompressed());
} catch (Exception $e) {
echo 'Create/modify failed for my.phar: ', $e;
}
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
int(4096)
bool(false)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>PharFileInfo::getCompressedSize</function></member>
<member><function>PharFileInfo::isCompressed</function></member>
<member><function>PharFileInfo::compress</function></member>
<member><function>Phar::canCompress</function></member>
<member><function>Phar::isCompressed</function></member>
<member><function>Phar::compressFiles</function></member>
<member><function>Phar::decompressFiles</function></member>
<member><function>Phar::compress</function></member>
<member><function>Phar::decompress</function></member>
<member><function>Phar::getSupportedCompression</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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