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

Example #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';
}
?>

User Contributed Notes

tahazit dot co dot il at gmail dot com 28-Nov-2014 01:25
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
hunter666 at abv dot bg 26-Jun-2010 01:44
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!';
}
?>
thomas dot rubbert at yahoo dot de 30-May-2009 05:19
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();
?>
D.Jann 07-Oct-2008 05:26
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
pagetronic 12-Sep-2008 03:53
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
Anonymous 24-Aug-2008 03:28
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
benjamin dot seiller at antwerpes dot de 21-Jul-2008 04:37
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