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PHP - Manual: ZipArchive::addEmptyDir

2024-12-21

ZipArchive::addEmptyDir

(PHP 5 >= 5.2.0, PHP 7, PHP 8, PECL zip >= 1.8.0)

ZipArchive::addEmptyDir — Add a new directory

说明

public ZipArchive::addEmptyDir(string $dirname, int $flags = 0): bool

Adds an empty directory in the archive.

参数

dirname

The directory to add.

flags

Bitmask consisting of ZipArchive::FL_ENC_GUESS, ZipArchive::FL_ENC_UTF_8, ZipArchive::FL_ENC_CP437. The behaviour of these constants is described on the ZIP constants page.

返回值

成功时返回 true， 或者在失败时返回 false。

更新日志

版本 说明
8.0.0 / 1.18.0 flags was added.

范例

示例 #1 Create a new directory in an archive

<?php
$zip = new ZipArchive;
if ($zip->open('test.zip') === TRUE) {
    if($zip->addEmptyDir('newDirectory')) {
        echo 'Created a new root directory';
    } else {
        echo 'Could not create the directory';
    }
    $zip->close();
} else {
    echo 'failed';
}
?>
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User Contributed Notes 7 notes

up
6
hunter666 at abv dot bg
11 years ago
Add folder and sub-directories to zip archive.

<?php
$archive_name = "archive.zip"; // name of zip file
$archive_folder = "folder"; // the folder which you archivate

$zip = new ZipArchive;
if ($zip -> open($archive_name, ZipArchive::CREATE) === TRUE)
{
    $dir = preg_replace('/[\/]{2,}/', '/', $archive_folder."/");
   
    $dirs = array($dir);
    while (count($dirs))
    {
        $dir = current($dirs);
        $zip -> addEmptyDir($dir);
       
        $dh = opendir($dir);
        while($file = readdir($dh))
        {
            if ($file != '.' && $file != '..')
            {
                if (is_file($file))
                    $zip -> addFile($dir.$file, $dir.$file);
                elseif (is_dir($file))
                    $dirs[] = $dir.$file."/";
            }
        }
        closedir($dh);
        array_shift($dirs);
    }
   
    $zip -> close();
    echo 'Archiving is sucessful!';
}
else
{
    echo 'Error, can\'t create a zip file!';
}
?>
up
1
D.Jann
13 years ago
I've brought a little modification to dayjo's code, so it wouldn't re-create the whole structure of your working drive in the zip file:

<?php
// Function to recursively add a directory,
// sub-directories and files to a zip archive
function addFolderToZip($dir, $zipArchive, $zipdir = ''){
    if (is_dir($dir)) {
        if ($dh = opendir($dir)) {

            //Add the directory
            if(!empty($zipdir)) $zipArchive->addEmptyDir($zipdir);
          
            // Loop through all the files
            while (($file = readdir($dh)) !== false) {
          
                //If it's a folder, run the function again!
                if(!is_file($dir . $file)){
                    // Skip parent and root directories
                    if( ($file !== ".") && ($file !== "..")){
                        addFolderToZip($dir . $file . "/", $zipArchive, $zipdir . $file . "/");
                    }
                  
                }else{
                    // Add the files
                    $zipArchive->addFile($dir . $file, $zipdir . $file);
                  
                }
            }
        }
    }
}
?>

If you don't specify the third parameter (zipdir), the directory you're adding will be added at the root of the zip file.

D.Jann
up
0
thomas dot rubbert at yahoo dot de
13 years ago
Here's a stack-based way to zip a directory. No recursion, no function, no class:

<?php
$zip = new ZipArchive();
$zip->open('test.zip', ZipArchive::CREATE);

$dirName = 'test';

if (!is_dir($dirName)) {
    throw new Exception('Directory ' . $dirName . ' does not exist');
}

$dirName = realpath($dirName);
if (substr($dirName, -1) != '/') {
    $dirName.= '/';
}

/*
* NOTE BY danbrown AT php DOT net: A good method of making
* portable code in this case would be usage of the PHP constant
* DIRECTORY_SEPARATOR in place of the '/' (forward slash) above.
*/

$dirStack = array($dirName);
//Find the index where the last dir starts
$cutFrom = strrpos(substr($dirName, 0, -1), '/')+1;

while (!empty($dirStack)) {
    $currentDir = array_pop($dirStack);
    $filesToAdd = array();

    $dir = dir($currentDir);
    while (false !== ($node = $dir->read())) {
        if (($node == '..') || ($node == '.')) {
            continue;
        }
        if (is_dir($currentDir . $node)) {
            array_push($dirStack, $currentDir . $node . '/');
        }
        if (is_file($currentDir . $node)) {
            $filesToAdd[] = $node;
        }
    }

    $localDir = substr($currentDir, $cutFrom);
    $zip->addEmptyDir($localDir);
   
    foreach ($filesToAdd as $file) {
        $zip->addFile($currentDir . $file, $localDir . $file);
    }
}

$zip->close();
?>
up
0
pagetronic
13 years ago
addEmptyDir doesn't exist now,
use $zip->addFile($file, $dir.$fichier);

nothing on the net about this,

addEmptyDir work on Ubuntu but not on Debian Etch
up
0
benjamin dot seiller at antwerpes dot de
13 years ago
There is kind of a bug in the method
ZipArchive::addFile
which affects the class ZipFolder below.
It is related to the numer of max filehandles of the OS.

As workaround add a file-counter to the class and close + reopen the archive if a certain number of files (directories count as files!) is reached.

For more details see here:
http://de.php.net/manual/en/function.ziparchive-addfile.php
or go directly here
http://bugs.php.net/bug.php?id=40494
or here
http://pecl.php.net/bugs/bug.php?id=9443
up
-1
tahazit dot co dot il at gmail dot com
7 years ago
On PHP >5.4, This function will create a file, not a directory.

For instance:

   $zip->addEmptyDir ( 'path/to/dir/' );

will create the folders "path/", and "path/to/", and a dummy 0-byte file named "dir" in the latter.
If then we add a file to that dir, say like this:

   $zip->addFromString ( 'path/to/dir/file.txt', $data ); 

the result will be a SEPARATE folder named "dir" next to the dummy "dir" file. The "dir" folder will contain the file "file.txt".

This was tested on an APACHE server running PHP 5.4
up
-3
Anonymous
13 years ago
Here's a simple recurring function to add a directory, all sub-directories and all files to an already created zip file;

<?php
// Function to recursively add a directory,
// sub-directories and files to a zip archive
function addFolderToZip($dir, $zipArchive){
    if (is_dir($dir)) {
        if ($dh = opendir($dir)) {

            //Add the directory
            $zipArchive->addEmptyDir($dir);
           
            // Loop through all the files
            while (($file = readdir($dh)) !== false) {
           
                //If it's a folder, run the function again!
                if(!is_file($dir . $file)){
                    // Skip parent and root directories
                    if( ($file !== ".") && ($file !== "..")){
                        addFolderToZip($dir . $file . "/", $zipArchive);
                    }
                   
                }else{
                    // Add the files
                    $zipArchive->addFile($dir . $file);
                   
                }
            }
        }
    }
}
?>

Would be nice to see more input on these functions :)

Dayjo
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官方地址：https://www.php.net/manual/en/ziparchive.addemptydir.php

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