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, PECL zip 1.18.0 flags was added.

    示例

    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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    用户贡献的备注 9 notes

    up
    4
    hunter666 at abv dot bg
    14 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
    thomas dot rubbert at yahoo dot de
    15 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
    1
    lea dot gris at noiraude dot net
    8 months ago
    The <code>addEmptyDir</code> method does not handle permissions bits and directory <code>mtime</code>. These need to be set separately after the directory has been created in the Zip Archive.

    Note that setting the <code>mtime</code> is only available since PHP >= 8.0, so it will stay the current timestamp of the <code>addEmptyDir</code> call with PHP 7.4 and below.

    Here is a function to fix both permissions and <code>mtime</code> of a directory in a Zip Archive.

    <pre><code lang="php">
    function fixDirAttributes(ZipArchive $zip, string $path, string $name)
    {
    // Gets the index of the directory in the Zip archive
    $indexInZip = $zip->locateName('/' === mb_substr($name, -1) ? $name : $name . '/');
    if (false !== $indexInZip) { // Name found
    if (method_exists($zip, 'setMtimeIndex')) { // PHP >= 8.0.0, PECL zip >= 1.16.0
    $zip->setMtimeIndex($indexInZip, filemtime($path)); // Fixes the mtime of the directory
    }
    $filePerms = fileperms($path); // Gets permissions on the directory
    if (false !== $filePerms) { // filePerms supported
    $attr = $filePerms << 16; // Left-shift permission to git the external attributes value
    $zip->setExternalAttributesIndex($indexInZip, \ZipArchive::OPSYS_UNIX, $attr);
    }
    }
    }
    </pre></code>
    up
    0
    iunknownvb at gmail dot com
    2 years ago
    I have modified thomas dot rubbert at yahoo dot de a little bit

    $uploads_dir =storage_path().'/app/public/files/' ;
    if(!file_exists($uploads_dir)){
    mkdir($uploads_dir,0777,true);
    }
    $zip_file=$uploads_dir.'download.zip';
    if(file_exists($zip_file)){
    unlink($zip_file);
    }
    $zip = new \ZipArchive();
    if (!$zip->open($zip_file, \ZIPARCHIVE::CREATE)) {
    http_response_code(501);
    echo 'Zip creation failed';
    die();
    }
    $img=$uploads_dir.'img';

    $dirName = realpath($img);
    if (substr($dirName, -1) != DIRECTORY_SEPARATOR) {
    $dirName.= DIRECTORY_SEPARATOR;
    }
    $dirStack = array($dirName);
    //Find the index where the last dir starts
    $cutFrom = strrpos(substr($dirName, 0, -1), DIRECTORY_SEPARATOR)+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 . $node . DIRECTORY_SEPARATOR);
    }
    if (is_file($currentDir . $node)) {
    $filesToAdd[] = $node;
    }
    }
    $localDir =str_replace(DIRECTORY_SEPARATOR,'/',substr($currentDir, $cutFrom));
    $zip->addEmptyDir($localDir);
    foreach ($filesToAdd as $file) {
    $zip->addFile($currentDir . $file, $localDir . $file);
    }
    }
    // any additional files
    $db=$uploads_dir.'databse.db';
    //$zip->addFromString(basename($db), file_get_contents($db));
    $zip->addFile($db, basename($db));
    $zip->close();
    up
    0
    pagetronic
    16 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
    16 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
    10 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
    -2
    D.Jann
    16 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
    -3
    Anonymous
    16 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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