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- 函数参考
- 压缩与归档扩展
- Phar
- PharData
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
filesto -
files -
The name of a file or directory to extract, or an array of files/directories to extract
-
overwrite -
Set to
trueto 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.
范例
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
User Contributed Notes 2 notes
up down 2 Anonymous ¶5 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?
up
down
1
njh at aelius dot com ¶9 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
add a note
官方地址：https://www.php.net/manual/en/phardata.extractto.php