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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 288721 $ -->
<refentry xml:id="phardata.converttodata" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>PharData::convertToData</refname>
<refpurpose>Convert a phar archive to a non-executable tar or zip file</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>PharData</type><methodname>PharData::convertToData</methodname>
<methodparam choice="opt"><type>int</type><parameter>format</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>compression</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>extension</parameter></methodparam>
</methodsynopsis>
<para>
This method is used to convert a non-executable tar or zip archive to another
non-executable format.
</para>
<para>
If no changes are specified, this method throws a <classname>BadMethodCallException</classname>.
This method should be used to convert a tar archive to zip format or vice-versa. Although
it is possible to simply change the compression of a tar archive using this method,
it is better to use the <function>PharData::compress</function> method for logical
consistency.
</para>
<para>
If successful, the method creates a new archive on disk and returns a <classname>PharData</classname>
object. The old archive is not removed from disk, and should be done manually after
the process has finished.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>format</parameter></term>
<listitem>
<para>
This should be one of <literal>Phar::TAR</literal>
or <literal>Phar::ZIP</literal>. If set to &null;, the existing file format
will be preserved.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>compression</parameter></term>
<listitem>
<para>
This should be one of <literal>Phar::NONE</literal> for no whole-archive
compression, <literal>Phar::GZ</literal> for zlib-based compression, and
<literal>Phar::BZ2</literal> for bzip-based compression.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>extension</parameter></term>
<listitem>
<para>
This parameter is used to override the default file extension for a
converted archive. Note that <literal>.phar</literal> cannot be used
anywhere in the filename for a non-executable tar or zip archive.
</para>
<para>
If converting to a tar-based phar archive, the
default extensions are <literal>.tar</literal>, <literal>.tar.gz</literal>,
and <literal>.tar.bz2</literal> depending on specified compression.
For zip-based archives, the
default extension is <literal>.zip</literal>.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The method returns a <classname>PharData</classname> object on success and throws an
exception on failure.
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
<para>
This method throws <classname>BadMethodCallException</classname> when unable
to compress, an unknown compression method has been specified, the requested
archive is buffering with <function>Phar::startBuffering</function> and
has not concluded with <function>Phar::stopBuffering</function>, and a
<classname>PharException</classname> if any problems are encountered
during the phar creation process.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>A <function>PharData::convertToData</function> example</title>
<para>
Using PharData::convertToData():
</para>
<programlisting role="php">
<![CDATA[
<?php
try {
$tarphar = new PharData('myphar.tar');
// note that myphar.tar is *not* unlinked
// convert it to the non-executable tar file format
// creates myphar.zip
$zip = $tarphar->convertToData(Phar::ZIP);
// create myphar.tbz
$tgz = $zip->convertToData(Phar::TAR, Phar::BZ2, '.tbz');
// creates myphar.phar.tgz
$phar = $tarphar->convertToData(Phar::PHAR); // throws exception
} catch (Exception $e) {
// handle the error here
}
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>Phar::convertToExecutable</function></member>
<member><function>Phar::convertToData</function></member>
<member><function>PharData::convertToExecutable</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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