PharData::extractTo

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL phar >= 2.0.0)

PharData::extractTo — Extract the contents of a tar/zip archive to a directory

说明

public PharData::extractTo(string $directory, array|string|null $files = null, bool $overwrite = false): bool

Extract all files within a tar/zip archive to disk. Extracted files and directories preserve permissions as stored in the archive. The optional parameters allow optional control over which files are extracted, and whether existing files on disk can be overwritten. The second parameter files can be either the name of a file or directory to extract, or an array of names of files and directories to extract. By default, this method will not overwrite existing files, the third parameter can be set to true to enable overwriting of files. This method is similar to ZipArchive::extractTo().

参数

directory: Path to extract the given files to
files: The name of a file or directory to extract, or an array of files/directories to extract
overwrite: Set to true to enable overwriting existing files

返回值

returns true on success, but it is better to check for thrown exception, and assume success if none is thrown.

错误／异常

Throws PharException if errors occur while flushing changes to disk.

示例

示例 #1 A PharData::extractTo() example

<?php
try {
    $phar = new PharData('myphar.tar');
    $phar->extractTo('/full/path'); // extract all files
    $phar->extractTo('/another/path', 'file.txt'); // extract only file.txt
    $phar->extractTo('/this/path',
        array('file1.txt', 'file2.txt')); // extract 2 files only
    $phar->extractTo('/third/path', null, true); // extract all files, and overwrite
} catch (Exception $e) {
    // handle errors
}
?>

注释

注意:
Windows NTFS file systems do not support some characters in filenames, namely <|>*?":. Filenames with a trailing dot are not supported either. Contrary to some extraction tools, this method does not replace these characters with an underscore, but instead fails to extract such files.

参见

Phar::extractTo() - Extract the contents of a phar archive to a directory

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用户贡献的备注 3 notes

down

njh at aelius dot com ¶

11 years ago

Note that PHAR only supports extracting the 'ustar' variant of the tar archives.

Some systems (such as older versions of Mac OS X) generate the 'pax' format by default.

See here for more information:
http://php.net/manual/pl/phar.fileformat.tar.php

down

Anonymous ¶

7 years ago

I'm unable to extract the first directory from a tar archive:
the destination dir remains empty,
no error is thrown

<?php
$tar = new \PharData('archive.tar');
if ($tar->current()->isDir()) {
                echo 'is_dir';
                $dir = $tar->current()->getPathname();
                $dir = basename($dir);
                $tar->extractTo('destination', $dir);
}
?>

the docs hint that the second param could be a name of file OR DIR to be extracted from the archive, is that really possible?

down

Daniel ¶

7 months ago

This is an example of how to decompress and unarchive a TAR.GZ file using Phar decompress() and extractTo() methods:

<?php
echo '<h1>TAR.GZ decompress</h1>';

$file_name = 'your_file.tar.gz';
$tar_file_name = str_replace('.gz', '', $file_name);
$dir_file_name = str_replace('.tar.gz', '', $file_name);

// decompress from gz and creates your_file.tar
$p = new PharData($file_name);
$p->decompress();

// unarchive from the tar to folder 'your_file'
$phar = new PharData($tar_file_name);
$phar->extractTo($dir_file_name);

echo '<h1>DONE</h1>';
?>