(PECL rar >= 0.1)
RarEntry::extract — Extract entry from the archive
$dir
[, string $filepath = ""
[, string $password = NULL
[, bool $extended_data = FALSE
]]] ) : bool
RarEntry::extract() extracts the entry's data.
It will create new file in the specified
dir with the name identical to the entry's name,
unless the second argument is specified. See below for more information.
dir
Path to the directory where files should be extracted. This parameter is
considered if and only if filepath is not. If both
parameters are empty an extraction to the current directory will be
attempted.
filepath
Path (relative or absolute) containing the directory and filename of the
extracted file. This parameter overrides both the parameter
dir and the original file name.
password
The password used to encrypt this entry. If the entry is not encrypted, this value will not be used and can
be omitted. If this parameter is omitted and the entry is encrypted, the password given to
rar_open(), if any, will be used. If a wrong password is given, either explicitly
or implicitly via rar_open(), CRC checking will fail and this method will fail and return FALSE.
If no password is given and one is required, this method will fail and return FALSE.
You can check whether an entry is encrypted with RarEntry::isEncrypted().
extended_data
If TRUE, extended information such as NTFS ACLs and Unix owner information will be set in the extract
files, as long as it's present in the archive.
Prior to version 2.0.0, this function would not handle relative paths correctly. Use realpath() as a workaround.
成功时返回 TRUE， 或者在失败时返回 FALSE。
| 版本 | 说明 |
|---|---|
| 3.0.0 |
extended_data was added.
|
| 3.0.0 | Support for RAR archives with repeated entry names is no longer defective. |
Example #1 RarEntry::extract() example
<?php
$rar_file = rar_open('example.rar') or die("Failed to open Rar archive");
$entry = rar_entry_get($rar_file, 'Dir/file.txt') or die("Failed to find such entry");
$entry->extract('/dir/to'); // create /dir/to/Dir/file.txt
$entry->extract(false, '/dir/to/new_name.txt'); // create /dir/to/new_name.txt
?>
Example #2 How to extract all files in archive:
<?php
/* example by Erik Jenssen aka erix */
$filename = "foobar.rar";
$filepath = "/home/foo/bar/";
$rar_file = rar_open($filepath.$filename);
$list = rar_list($rar_file);
foreach($list as $file) {
$entry = rar_entry_get($rar_file, $file);
$entry->extract("."); // extract to the current dir
}
rar_close($rar_file);
?>
Example #2 has a mistake.
This one works fine:
<?php
/* example by Erik Jenssen aka erix */
$filename = "foobar.rar";
$filepath = "/home/foo/bar/";
$rar_file = rar_open($filepath.$filename);
$list = rar_list($rar_file);
foreach($list as $file) {
$entry = rar_entry_get($rar_file, $file->getName());
$entry->extract("."); // extract to the current dir
}
rar_close($rar_file);
?>
If the entry to extract is a directory as per RarEntry::isDirectory(), this method does not seem to extract the entries below that directory as one might expect from using the command-line RAR or WinRAR.