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zip_close> <ZipArchive::unchangeName
Last updated: Fri, 19 Jun 2009

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Zip Funktionen

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zip_close> <ZipArchive::unchangeName
Last updated: Fri, 19 Jun 2009
 
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Zip Funktionen
lostdreamer_nl at hotmail dot com
08-Oct-2008 08:22
in regards to the extracting via unzip.lib.php:
Don't forget to also put in the file path.
Otherwise you end up with a lot of files in the wrong folder...

<?php
require_once("zip.lib.php");
require_once("unzip.lib.php");

$zip = new SimpleUnzip();
$filename = "myzippedfile.zip";
$entries = $zip->ReadFile($filename);

foreach ($entries as $entry){
     $fh = fopen($entry->Path .'/'.$entry->Name, 'w', false);
    fwrite($fh,$entry->Data);
    fclose($fh);
}
?>
phillpafford+php at gmail dot com
12-Jun-2008 01:28
You could just use the linux commands

<?php

// Get the date
$date = date("m-d-y");

// Make Zip name
$zipname = "archive/site-script-backup." . $date . ".zip";

// Make a zip file
$cmd = `zip -r $zipname *`;

?>
fgarciarico at gmail dot com
26-May-2008 06:19
Using the same scripts as the last message:

\libraries\zip.lib.php
\libraries\unzip.lib.php

you can also extract all the files included in a zip file. This is my own example:

require_once("zip.lib.php");
require_once("unzip.lib.php");

$zip = new SimpleUnzip();
$filename = "myzippedfile.zip";
$entries = $zip->ReadFile($filename);

foreach ($entries as $entry){
     $fh = fopen($entry->Name, 'w', false);
    fwrite($fh,$entry->Data);
    fclose($fh);
}
cusimar9 at hotmail dot com
13-May-2008 04:06
Just to second the comments above and say that the zipfile class in phpMyAdmin is excellent.

There are 2 files when you download phpMyAdmin:

\libraries\zip.lib.php
\libraries\unzip.lib.php

Here is a small example:

$zip = new zipfile();
$filename = "1.jpg";
$fsize = @filesize($filename);
$fh = fopen($filename, 'rb', false);
$data = fread($fh, $fsize);             
$zip->addFile($data,$filename);

$zipcontents = $zip->file();

header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"TheZip.zip\"");
header("Content-length: " . strlen($zipcontents) . "\n\n");

// output data
echo $zipcontents;
rodrigo dot moraes at gmail dot com
29-Jan-2008 03:56
Here's a more simple extended class to add a whole directory recursively, keeping the same structure. It uses SPL.

<?php
class MyZipArchive extends ZipArchive
{
    /**
     *
     * Adds a directory recursively.
     *
     * @param string $filename The path to the file to add.
     *
     * @param string $localname Local name inside ZIP archive.
     *
     */
    public function addDir($filename, $localname)
    {
        $this->addEmptyDir($localname);
        $iter = new RecursiveDirectoryIterator($filename);

        foreach ($iter as $fileinfo) {
            if (! $fileinfo->isFile() && !$fileinfo->isDir()) {
                continue;
            }

            $method = $fileinfo->isFile() ? 'addFile' : 'addDir';
            $this->$method($fileinfo->getPathname(), $localname . '/' .
                $fileinfo->getFilename());
        }
    }
}
?>
mmj48 at gmail dot com
08-Nov-2007 01:39
Heres a function I wrote that will extract a zip file with the same directory structure...

Enjoy:

<?php
function unzip($zipfile)
{
    $zip = zip_open($zipfile);
    while ($zip_entry = zip_read($zip))    {
        zip_entry_open($zip, $zip_entry);
        if (substr(zip_entry_name($zip_entry), -1) == '/') {
            $zdir = substr(zip_entry_name($zip_entry), 0, -1);
            if (file_exists($zdir)) {
                trigger_error('Directory "<b>' . $zdir . '</b>" exists', E_USER_ERROR);
                return false;
            }
            mkdir($zdir);
        }
        else {
            $name = zip_entry_name($zip_entry);
            if (file_exists($name)) {
                trigger_error('File "<b>' . $name . '</b>" exists', E_USER_ERROR);
                return false;
            }
            $fopen = fopen($name, "w");
            fwrite($fopen, zip_entry_read($zip_entry, zip_entry_filesize($zip_entry)), zip_entry_filesize($zip_entry));
        }
        zip_entry_close($zip_entry);
    }
    zip_close($zip);
    return true;
}
?>
nheimann at gmx dot net
03-Nov-2007 03:19
With this extension you can Add dirs with files with the ZipArchive Object

/**
 * FlxZipArchive, Extends ZipArchiv.
 * Add Dirs with Files and Subdirs.
 *
 * <code>
 *  $archive = new FlxZipArchive;
 *  // .....
 *  $archive->addDir( 'test/blub', 'blub' );
 * </code>
 */
class FlxZipArchive extends ZipArchive {
    /**
     * Add a Dir with Files and Subdirs to the archive
     *
     * @param string $location Real Location
     * @param string $name Name in Archive
     * @author Nicolas Heimann
     * @access private
     **/

    public function addDir($location, $name) {
        $this->addEmptyDir($name);

        $this->addDirDo($location, $name);
//     } // EO addDir;

    /**
     * Add Files & Dirs to archive.
     *
     * @param string $location Real Location
     * @param string $name Name in Archive
     * @author Nicolas Heimann
     * @access private
     **/

    private function addDirDo($location, $name) {
        $name .= '/';
        $location .= '/';

        // Read all Files in Dir
        $dir = opendir ($location);
        while ($file = readdir($dir))
        {
            if ($file == '.' || $file == '..') continue;

            // Rekursiv, If dir: FlxZipArchive::addDir(), else ::File();
            $do = (filetype() == 'dir') ? 'addDir' : 'addFile';
            $this->$do($location . $file, $name . $file);
        }
    } // EO addDirDo();
}
bushj at rpi dot edu
25-Jun-2007 05:59
I made a zip stream handler in case your distribution does not have the built in one using the new ZipArchive system. This one also features the ability to grab entries by index as well as by name. It is similar in capabilities to the builtin gzip/bzip2 compression stream handlers (http://us2.php.net/manual/en/wrappers.compression.php) except it does not support writing.

To use:
fopen('zip://absolute/path/to/file.zip?entryname', $mode) or
fopen('zip://absolute/path/to/file.zip#entryindex', $mode) or
fopen('zip://absolute/path/to/file.zip', $mode)

$mode can only be 'r' or 'rb'. In the last case the first entry in the zip file is used.

<?php
class ZipStream {
  public $zip; //the zip file
  public $entry; //the opened zip entry
  public $length; //the uncompressed size of the zip entry
  public $position; //the current position in the zip entry read
  //Opens the zip file then retrieves and opens the entry to stream
  public function stream_open($path, $mode, $options, &$opened_path) {
    if ($mode != 'r' && $mode != 'rb') //only accept r and rb modes, no writing!
      return false;
    $path = 'file:///'.substr($path, 6); //switch out file:/// for zip:// so we can use url_parse
    $url = parse_url($path);
    //open the zip file
    $filename = $url['path'];
    $this->zip = zip_open($filename);
    if (!is_resource($this->zip))
      return false;

    //if entry name is given, find that entry   
    if (array_key_exists('query', $url) && $url['query']) {
      $path = $url['query'];
      do {
        $this->entry = zip_read($this->zip);
        if (!is_resource($this->entry))
          return false;
      } while (zip_entry_name($this->entry) != $path);    
    } else { //otherwise get it by index (default to 0)
      $id = 0;
      if (array_key_exists('fragment', $url) && is_int($url['fragment']))
        $id = $url['fragment']*1;
      for ($i = 0; $i <= $id; $i++) {
        $this->entry = zip_read($this->zip);
        if (!is_resource($this->entry))
          return false;
      }
    }
    //setup length and open the entry for reading
    $this->length = zip_entry_filesize($this->entry);
    $this->position = 0;
    zip_entry_open($this->zip, $this->entry, $mode);
    return true;
  }
  //Closes the zip entry and file
  public function stream_close() { @zip_entry_close($this->entry); @zip_close($this->zip); }
  //Returns how many bytes have been read from the zip entry
  public function stream_tell() { return $this->position; }
  //Returns true if the end of the zip entry has been reached
  public function stream_eof() { return $this->position >= $this->length; }
  //Returns the stat array, only 'size' is filled in with the uncompressed zip entry size
  public function url_stat() { return array('dev'=>0, 'ino'=>0, 'mode'=>0, 'nlink'=>0, 'uid'=>0, 'gid'=>0, 'rdev'=>0, 'size'=>$this->length, 'atime'=>0, 'mtime'=>0, 'ctime'=>0, 'blksize'=>0, 'blocks'=>0); }
  //Reads the next $count bytes or until the end of the zip entry. Returns the data or false if no data was read.
  public function stream_read($count) {
    $this->position += $count;
    if ($this->position > $this->length)
      $this->position = $this->length;
    return zip_entry_read($this->entry, $count);
  }
}
//Register the zip stream handler
stream_wrapper_register('zip', 'ZipStream'); //if this fails there is already a zip stream handler and we will just use that one
?>
martinlarsen at bigfoot dot com
07-Jun-2007 11:40
Lennart Poot's example of using phpMyAdmin's zip library is missing the echo that will actually output the final zip file.

At the end (but before the exit which isn't needed anyway), add this line:

echo $dump_buffer;
darkstream777 at gmx dot net
15-May-2007 11:19
Hi,
i modified the function from nielsvandenberge, now you
can also use relative path's, i added also error messages
and another small highlights, have fun.

<?php
/**
 * Unzip the source_file in the destination dir
 *
 * @param   string      The path to the ZIP-file.
 * @param   string      The path where the zipfile should be unpacked, if false the directory of the zip-file is used
 * @param   boolean     Indicates if the files will be unpacked in a directory with the name of the zip-file (true) or not (false) (only if the destination directory is set to false!)
 * @param   boolean     Overwrite existing files (true) or not (false)
 *
 * @return  boolean     Succesful or not
 */
function unzip($src_file, $dest_dir=false, $create_zip_name_dir=true, $overwrite=true)
{
  if(function_exists("zip_open"))
  {  
      if(!is_resource(zip_open($src_file)))
      {
          $src_file=dirname($_SERVER['SCRIPT_FILENAME'])."/".$src_file;
      }
     
      if (is_resource($zip = zip_open($src_file)))
      {         
          $splitter = ($create_zip_name_dir === true) ? "." : "/";
          if ($dest_dir === false) $dest_dir = substr($src_file, 0, strrpos($src_file, $splitter))."/";
        
          // Create the directories to the destination dir if they don't already exist
          create_dirs($dest_dir);

          // For every file in the zip-packet
          while ($zip_entry = zip_read($zip))
          {
            // Now we're going to create the directories in the destination directories
          
            // If the file is not in the root dir
            $pos_last_slash = strrpos(zip_entry_name($zip_entry), "/");
            if ($pos_last_slash !== false)
            {
              // Create the directory where the zip-entry should be saved (with a "/" at the end)
              create_dirs($dest_dir.substr(zip_entry_name($zip_entry), 0, $pos_last_slash+1));
            }

            // Open the entry
            if (zip_entry_open($zip,$zip_entry,"r"))
            {
            
              // The name of the file to save on the disk
              $file_name = $dest_dir.zip_entry_name($zip_entry);
            
              // Check if the files should be overwritten or not
              if ($overwrite === true || $overwrite === false && !is_file($file_name))
              {
                // Get the content of the zip entry
                $fstream = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));          
               
                if(!is_dir($file_name))           
                file_put_contents($file_name, $fstream );
                // Set the rights
                if(file_exists($file_name))
                {
                    chmod($file_name, 0777);
                    echo "<span style=\"color:#1da319;\">file saved: </span>".$file_name."<br />";
                }
                else
                {
                    echo "<span style=\"color:red;\">file not found: </span>".$file_name."<br />";
                }
              }
            
              // Close the entry
              zip_entry_close($zip_entry);
            }     
          }
          // Close the zip-file
          zip_close($zip);
      }
      else
      {
        echo "No Zip Archive Found.";
        return false;
      }
    
      return true;
  }
  else
  {
      if(version_compare(phpversion(), "5.2.0", "<"))
      $infoVersion="(use PHP 5.2.0 or later)";
     
      echo "You need to install/enable the php_zip.dll extension $infoVersion";
  }
}

function create_dirs($path)
{
  if (!is_dir($path))
  {
    $directory_path = "";
    $directories = explode("/",$path);
    array_pop($directories);
  
    foreach($directories as $directory)
    {
      $directory_path .= $directory."/";
      if (!is_dir($directory_path))
      {
        mkdir($directory_path);
        chmod($directory_path, 0777);
      }
    }
  }
}
?>

greetings darki777
nielsvandenberge at hotmail dot com
11-May-2007 09:29
This is the function I use to unzip a file.
It includes the following options:
* Unzip in any directory you like
* Unzip in the directory of the zip file
* Unzip in a directory with the zipfile's name in the directory of the zip file. (i.e.: C:\test.zip will be unzipped in  C:\test\)
* Overwrite existing files or not
* It creates non existing directories with the function Create_dirs($path)

You should use absolute paths with slashes (/) instead of backslashes (\).
I tested it with PHP 5.2.0 with php_zip.dll extension loaded

<?php
/**
 * Unzip the source_file in the destination dir
 *
 * @param   string      The path to the ZIP-file.
 * @param   string      The path where the zipfile should be unpacked, if false the directory of the zip-file is used
 * @param   boolean     Indicates if the files will be unpacked in a directory with the name of the zip-file (true) or not (false) (only if the destination directory is set to false!)
 * @param   boolean     Overwrite existing files (true) or not (false)
 * 
 * @return  boolean     Succesful or not
 */
function unzip($src_file, $dest_dir=false, $create_zip_name_dir=true, $overwrite=true)
{
  if ($zip = zip_open($src_file))
  {
    if ($zip)
    {
      $splitter = ($create_zip_name_dir === true) ? "." : "/";
      if ($dest_dir === false) $dest_dir = substr($src_file, 0, strrpos($src_file, $splitter))."/";
     
      // Create the directories to the destination dir if they don't already exist
      create_dirs($dest_dir);

      // For every file in the zip-packet
      while ($zip_entry = zip_read($zip))
      {
        // Now we're going to create the directories in the destination directories
       
        // If the file is not in the root dir
        $pos_last_slash = strrpos(zip_entry_name($zip_entry), "/");
        if ($pos_last_slash !== false)
        {
          // Create the directory where the zip-entry should be saved (with a "/" at the end)
          create_dirs($dest_dir.substr(zip_entry_name($zip_entry), 0, $pos_last_slash+1));
        }

        // Open the entry
        if (zip_entry_open($zip,$zip_entry,"r"))
        {
         
          // The name of the file to save on the disk
          $file_name = $dest_dir.zip_entry_name($zip_entry);
         
          // Check if the files should be overwritten or not
          if ($overwrite === true || $overwrite === false && !is_file($file_name))
          {
            // Get the content of the zip entry
            $fstream = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));

            file_put_contents($file_name, $fstream );
            // Set the rights
            chmod($file_name, 0777);
            echo "save: ".$file_name."<br />";
          }
         
          // Close the entry
          zip_entry_close($zip_entry);
        }      
      }
      // Close the zip-file
      zip_close($zip);
    }
  }
  else
  {
    return false;
  }
 
  return true;
}

/**
 * This function creates recursive directories if it doesn't already exist
 *
 * @param String  The path that should be created
 * 
 * @return  void
 */
function create_dirs($path)
{
  if (!is_dir($path))
  {
    $directory_path = "";
    $directories = explode("/",$path);
    array_pop($directories);
   
    foreach($directories as $directory)
    {
      $directory_path .= $directory."/";
      if (!is_dir($directory_path))
      {
        mkdir($directory_path);
        chmod($directory_path, 0777);
      }
    }
  }
}

// Extract C:/zipfiletest/zip-file.zip to C:/zipfiletest/zip-file/ and overwrites existing files
unzip("C:/zipfiletest/zip-file.zip", false, true, true);

// Extract C:/zipfiletest/zip-file.zip to C:/another_map/zipfiletest/ and doesn't overwrite existing files. NOTE: It doesn't create a map with the zip-file-name!
unzip("C:/zipfiletest/zip-file.zip", "C:/another_map/zipfiletest/", true, false);

?>
jeswanth@gmail
30-Apr-2007 07:55
Hi, all

There are lot of functions given below which etracts files, but what they lack is setting file permissions. On some servers file permissions are very important and the script cease to work after creating first directory, So I have added chmod to the code. There is only one limitation to the code, files without file extension are neither treated as files or directories so they are not chmoded, anyway this does not affect the code. Hope this helps.

<?php
function unpackZip($dir,$file) {
   if ($zip = zip_open($dir.$file.".zip")) {
     if ($zip) {
       mkdir($dir.$file);
     chmod($dir.$file, 0777);
       while ($zip_entry = zip_read($zip)) {
         if (zip_entry_open($zip,$zip_entry,"r")) {
           $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
           $dir_name = dirname(zip_entry_name($zip_entry));
           if ($dir_name != ".") {
             $dir_op = $dir.$file."/";
               foreach ( explode("/",$dir_name) as $k) {
                 $dir_op = $dir_op . $k;
                 if (is_file($dir_op)) unlink($dir_op);
                 if (!is_dir($dir_op)) mkdir($dir_op);
            chmod($dir_op, 0777);
                 $dir_op = $dir_op . "/" ;
                 }
               }
           $fp=fopen($dir.$file."/".zip_entry_name($zip_entry),"w+");
        chmod($dir.$file."/".zip_entry_name($zip_entry), 0777);
           fwrite($fp,$buf);

           fclose($fp);

           zip_entry_close($zip_entry);
       } else
           return false;
       }
       zip_close($zip);
     }
  } else
     return false;

  return true;
}

$dir = $_SERVER['DOCUMENT_ROOT']."/"."destdirectory/";
$file = 'zipfilename_without_extension';
unpackZip($dir,$file);
$print = $_SERVER['DOCUMENT_ROOT'];
?>
max at centdessin dot com
18-Oct-2006 07:19
I've needed a simple php class to manipulate zip files without PCEL extension, after reading all comment and tested 2 nice classes, here's my conclusion:

"You can use PHPMyAdmin's zip.lib"
-- Lennart Poot -- 12-Jul-2006 07:33

true, getting it is a bit awkward but the class is straight foward and works. BUT it only create zip files, it wont extract them.

"Hey guys, maybe you should check this out:
http://www.phpconcept.net/pclzip/index.en.php "
-- master_auer at web dot de -- 16-Nov-2003 07:49

true, check it if you need more advanced feature, this class is awsome.
bholub at chiefprojects dot com
17-Oct-2006 07:14
This will simply unpack (including directories) $zip to $dir -- in this example the zip is being uploaded.
<?php
    $dir = 'C:\\reports-temp\\';
    $zip = zip_open($_FILES['report_zip']['tmp_name']);
    while($zip_entry = zip_read($zip)) {
        $entry = zip_entry_open($zip,$zip_entry);
        $filename = zip_entry_name($zip_entry);
        $target_dir = $dir.substr($filename,0,strrpos($filename,'/'));
        $filesize = zip_entry_filesize($zip_entry);
        if (is_dir($target_dir) || mkdir($target_dir)) {
            if ($filesize > 0) {
                $contents = zip_entry_read($zip_entry, $filesize);
                file_put_contents($dir.$filename,$contents);
            }
        }
    }
?>
Mishania at ketsujin dot com
06-Oct-2006 03:39
Notes from phpContrib [ a t ] eSurfers D o t COM are a ROCK!!!

1)  In order to make it work U'll probably need:
 ** Allow Apache service to interact with desktop, but in that case U will notice momentarely console window opens and closes.  That's may be annoying.  The elegant solution instead of allowing interaction is redirect the command to some temporary file, and get rid of it later on:

define('UNZIP_CMD','unzip -o @_SRC_@ -x -d 
@_DST_@ > tmpfile.txt');

2)  I would recommend to use 7-zip, it's free and completely relyable.  Also, it's comes with stand alone console executable which makes it quite convenient to place it in some exec library folder within your source, and refferering directly to it.

define("UNZIP_CMD","7za.exe x @_SRC_@ -o@_DST_@ > tmpfile.txt");
24-Sep-2006 02:46
Previous poster's code is not using escape_shell_arg(), so it can be a huge security hole if attacker could manipulate filename/dir. I suggest replacing str_replace() with sprintf() and escape_shell_arg().
phpContrib [ a t ] eSurfers D o t COM
05-Sep-2006 09:35
1) A warning to all users of PHP Zipping/Unzipping Classes: most of them require the whole content of the ZIP file and/or the unzipped contents to stay in memory. They work very well, but might fail with very large files. Keep this in mind before starting development of a project involving large ZIP files.

2) If all you need is to unzip files to a folder, and your server has a zip command line tool, all you might need is a function like this:

if(!defined('UNZIP_CMD')) define('UNZIP_CMD','unzip -o @_SRC_@ -x -d 
@_DST_@');

function UnzipAllFiles($zipFile,$zipDir) {
    $unzipCmd=UNZIP_CMD;
    $unzipCmd=str_replace('@_SRC_@',$zipFile,$unzipCmd);
    $unzipCmd=str_replace('@_DST_@',$zipDir,$unzipCmd);
    $res=-1; // any nonzero value
    $UnusedArrayResult=array();
    $UnusedStringResult=exec($unzipCmd,$UnusedArrayResult,$res);
    return ($res==0);
}

// * * *  You DO NOT NEED the ZIP lib or M-ZIP to use this, but you will need the tool M-ZIP uses (unzip.exe or unzip for linux).  * * *

// Use it this way:

    $zipFile='/path/to/uploaded_file.zip';
    $whereToUnzip='/path/to/writable/folder/';

    $result=UnzipAllFiles($zipFile,$whereToUnzip);

    if($result===FALSE) echo('FAILED');
    else echo('SUCCESS');

By changing UNZIP_CMD (the same constant as in the m-zip lib) you can 
of course untar, unarc, unrar, etc... provided you have the correct 
unwhatever command or unwhatever.exe executable and write its correct syntax in UNZIP_CMD.

To see details of what tools you need and where to put them (or to use a syntax compatible to the standard zip lib) see http://eSurfers.com/m-zip/
Lennart Poot
12-Jul-2006 11:33
You can use PHPMyAdmin's zip.lib library. It's available in the package PHPMyAdmin ( http://www.phpmyadmin.net/  ).

The zip class is located in /libraries/zip.lib.php

Next example generates a file named 'subfolder_in_zip_archive/_settings.php' using information of variable $settings. All files in folder 'folder_holding_files_to_add_to_zip' ($ad_dir) will be added to the archive as well.

In this example the raw zip archive data is responded to the browser. Uncomment the lines after 'write the file to disk' if you would like the archive to be stored on disk.

The function $zipfile -> addFile requires two parameters.

- The first parameter holds raw data and needs to be escaped using php function ‘stripcslashes’
- The second parameter holds the filename in the archive. You can enter complete paths to create complex folder structures

A timestamp can be added using the third additional parameter.

Regars,

Lennart Poot

<?php
  require_once('zip.lib.php');
  $zipfilename = 'zip_archive_to_generate.zip';
  $zip_subfolder = 'subfolder_in_zip_archive';

  $settings = '
    <?php
      $setting1 = "'.$setting1.'";
      $setting2 = "'.$setting2.'";
    ?>
  ';

  $ad_dir = 'folder_holding_files_to_add_to_zip';

  // form is posted, handle it   
  $zipfile = new zipfile();

  // generate _settings into zip file
  $zipfile ->addFile( stripcslashes( $settings ), $zip_subfolder . '/_settings.php' );

  if ($handle = opendir($ad_dir)) {
     while (false !== ($file = readdir($handle))) {
        if (!is_dir($file) && $file != "." && $file != ".." ) {
          $f_tmp = @fopen( $ad_dir . '/' . $file, 'r');

          if($f_tmp){
            $dump_buffer=fread( $f_tmp, filesize($ad_dir . '/' . $file));
            $zipfile -> addFile($dump_buffer, $zip_subfolder . '/' . $file);
            fclose( $f_tmp );
          }
        }
     }  

  $dump_buffer = $zipfile -> file();
  // write the file to disk:
  /*
  $file_pointer = fopen('newzip.zip', 'w');
  if($file_pointer){
    fwrite( $file_pointer, $dump_buffer, strlen($dump_buffer) );
    fclose( $file_pointer );
  }
  */

  // response zip archive to browser:
  header('Pragma: public');
  header('Content-type: application/zip');
  header('Content-length: ' . strlen($dump_buffer));
  header('Content-Disposition: attachment; filename="'.$zipfilename.'"');

  exit;
?>
nospam at hostingfanatic dot com
11-May-2006 05:27
I needed a quick way to make a zip file from an entire directory including subdirectories. This is downright rough but if someone would fancy it up a bit it works good with the zip class at http://smiledsoft.com/demos/phpzip/ (free version).

Basic use in script would be...

make_archive("the/directory", $zip_archive_object);

<?php
function make_archive( $dir , &$zip, $extdir="")
{
       if (is_dir($dir)) {
           if ($dh = opendir($dir)) {
               while (($file = readdir($dh)) !== false ) {
                       if( $file != "." && $file != ".." )
                       {
                               if( is_dir( $dir . $file ) )
                               {

                                           $zip->add_file($dir.$file,$extdir.$file);

                                            make_archive($dir.$file."/" , $zip, $extdir.$file."/");

                               }
                               else
                               {
            
                                           $zip->add_file($dir.$file,$extdir.$file);                                                        
                               }
                       }
               }
               closedir($dh);
           }
       }
return true;
}
?>
10-May-2006 02:23
I try to use the function unpackZip from schore at NOSPAM dot hotmail dot com.

it appears that the fclose instruction is missing. Without that instruction, i've got some trouble to unpack zip file with recursive folders.

Here is the new code with the missing instruction
<?php
function unpackZip($dir,$file) {
   if ($zip = zip_open($dir.$file.".zip")) {
     if ($zip) {
       mkdir($dir.$file);
       while ($zip_entry = zip_read($zip)) {
         if (zip_entry_open($zip,$zip_entry,"r")) {
           $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
           $dir_name = dirname(zip_entry_name($zip_entry));
           if ($dir_name != ".") {
             $dir_op = $dir.$file."/";
               foreach ( explode("/",$dir_name) as $k) {
                 $dir_op = $dir_op . $k;
                 if (is_file($dir_op)) unlink($dir_op);
                 if (!is_dir($dir_op)) mkdir($dir_op);
                 $dir_op = $dir_op . "/" ;
                 }
               }
           $fp=fopen($dir.$file."/".zip_entry_name($zip_entry),"w");
           fwrite($fp,$buf);

           fclose($fp);

           zip_entry_close($zip_entry);
       } else
           return false;
       }
       zip_close($zip);
     }
  } else
     return false;

  return true;
}
?>
angelnsn1 at hotmail dot com
27-Jan-2006 02:06
this function extract all files and subdirectories, you can choose verbose mode for get paths of files extracted. the function return a msg what indicate the error, if msg is OK, all is done.

---

code:

function unzip($dir, $file, $verbose = 0) {

   $dir_path = "$dir$file";
   $zip_path = "$dir$file.zip";
  
   $ERROR_MSGS[0] = "OK";
   $ERROR_MSGS[1] = "Zip path $zip_path doesn't exists.";
   $ERROR_MSGS[2] = "Directory $dir_path for unzip the pack already exists, impossible continue.";
   $ERROR_MSGS[3] = "Error while opening the $zip_path file.";
  
   $ERROR = 0;
  
   if (file_exists($zip_path)) {
  
         if (!file_exists($dir_path)) {
            
            mkdir($dir_path);   
        
         if (($link = zip_open($zip_path))) {
            
            while (($zip_entry = zip_read($link)) && (!$ERROR)) {
               
               if (zip_entry_open($link, $zip_entry, "r")) {
          
                  $data = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
                  $dir_name = dirname(zip_entry_name($zip_entry));
                  $name = zip_entry_name($zip_entry);
                 
                  if ($name[strlen($name)-1] == '/') {
                        
                        $base = "$dir_path/";

                     foreach ( explode("/", $name) as $k) {
                        
                        $base .= "$k/";
                           
                        if (!file_exists($base))
                           mkdir($base);
                           
                     }   
                       
                  }
                  else {
                 
                      $name = "$dir_path/$name";
                     
                      if ($verbose)
                       echo "extracting: $name<br>";
                       
                    $stream = fopen($name, "w");
                    fwrite($stream, $data);
                   
                  } 
                
                  zip_entry_close($zip_entry);
                
               }
               else
                  $ERROR = 4;    
 
              }
             
              zip_close($link); 
            
           }
           else
              $ERROR = "3";
       }
       else
          $ERROR = 2;
    }
    else
       $ERROR = 1;
     
   return $ERROR_MSGS[$ERROR];       
   
}   

---

example:

$error = unzip("d:/www/dir/", "zipname", 1);

echo $error;

---

i hope this help you,
good bye.
ringu at mail dot ru
20-Aug-2005 01:12
i try to find function that will show exists file in zip archive or not. of course i not found it. and so write mine:

first will just check archive for list of files, if not found all files function return FALSE:

function zipx_entries_exists()
{
    $names=array();
    $args=func_get_args();
    $far_size=count($args);   
    if($args[0])
        {           
            for(; $zip_entry=zip_read($args[0]); $names[]= zip_entry_name($zip_entry));                                   
            for($x=1; $x<=$far_size; $t+=in_array($args[$x], $names), $x++);           
            return $t==--$far_size;           
        }else{
             return 'No zip file in descriptor!';
        }              
}

example:
$zip=zip_open('any_zip_file_zip');
var_dump(zip_entries_exists($zip, 'photo_1.jpg', 'photo_2.jpg'));

second function will try to find files in zip, if not found it return string with names of not found files with specified delimeter:

function zipx_entries_nonexists_list()
{
    $names=array();
    $args=func_get_args();
    $m=NULL;
    $far_size=count($args);   
    if($args[0])
        {           
            for(; $zip_entry=zip_read($args[0]); $names[]= zip_entry_name($zip_entry));                                   
            for($x=2; $x<=$far_size; $m.=(in_array($args[$x], $names) ? NULL : $args[$x].$args[1]), $x++);           
            return trim($m, $args[1]);           
        }else{
             return 'No zip file in descriptor!';
        }              
}

example:
$zip=zip_open('any_zip_file_zip');
var_dump(zip_entries_nonexists_list($zip, '<br />', 'photo_1.jpg', 'photo_2.jpg'));

it will return if not found files:
photo_1.jpg<br />photo_2.jpg
tom
28-Jun-2005 04:33
If you just want to unzip a zip folder an alternative to some of the lengthy functions below is:

<?

function unzip($zip_file, $src_dir, $extract_dir)
{
 copy($src_dir . "/" . $zip_file, $extract_dir . "/" . $zip_file);
 chdir($extract_dir);
 shell_exec("unzip $zip_file");
}

?>

You don't need the ZIP extension for this.
candido1212 at yahoo dot com dot br
27-Apr-2005 03:52
New Unzip function, recursive extract
Require mkdirr() (recursive create dir)

$file = "2537c61ef7f47fc3ae919da08bcc1911.zip";
$dir = getcwd();
function Unzip($dir, $file, $destiny="")
{
    $dir .= DIRECTORY_SEPARATOR;
    $path_file = $dir . $file;
    $zip = zip_open($path_file);
    $_tmp = array();
    $count=0;
    if ($zip)
    {
        while ($zip_entry = zip_read($zip))
        {
            $_tmp[$count]["filename"] = zip_entry_name($zip_entry);
            $_tmp[$count]["stored_filename"] = zip_entry_name($zip_entry);
            $_tmp[$count]["size"] = zip_entry_filesize($zip_entry);
            $_tmp[$count]["compressed_size"] = zip_entry_compressedsize($zip_entry);
            $_tmp[$count]["mtime"] = "";
            $_tmp[$count]["comment"] = "";
            $_tmp[$count]["folder"] = dirname(zip_entry_name($zip_entry));
            $_tmp[$count]["index"] = $count;
            $_tmp[$count]["status"] = "ok";
            $_tmp[$count]["method"] = zip_entry_compressionmethod($zip_entry);
           
            if (zip_entry_open($zip, $zip_entry, "r"))
            {
                $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
                if($destiny)
                {
                    $path_file = str_replace("/",DIRECTORY_SEPARATOR, $destiny . zip_entry_name($zip_entry));
                }
                else
                {
                    $path_file = str_replace("/",DIRECTORY_SEPARATOR, $dir . zip_entry_name($zip_entry));
                }
                $new_dir = dirname($path_file);
               
                // Create Recursive Directory
                mkdirr($new_dir);
               

                $fp = fopen($dir . zip_entry_name($zip_entry), "w");
                fwrite($fp, $buf);
                fclose($fp);

                zip_entry_close($zip_entry);
            }
            echo "\n</pre>";
            $count++;
        }

        zip_close($zip);
    }
}
Unzip($dir,$file);
Nahaylo Vitalik
25-Feb-2005 02:52
Zip Class from Devin Doucette at phpclasses.org
Allows the creation of tar, gzip, bzip2, and zip archives, and the extraction of tar, gzip, and bzip2.
Supports relative paths/no paths, comments, and recursing through subdirectories.
Can write file to disk, allow user to download directly, or return file contents in a string or an array.
Does not require any external programs to run.
Here is a link: http://www.phpclasses.org/browse/package/945.html
23-Feb-2005 04:54
If (as me) all you wanted to do is store a big string (for example, a serialized array or the like) in a mysql BLOB field, remember that mysql has a COMPRESS() and UNCOMPRESS() pair of functions that do exactly that. Compression/decompression is therefore available also when accessing the DB from other languages like java, etc.
Mishania AT ketsujin DOT COM
06-Jan-2005 04:19
I slightly changed the extension of Schore that makes function operate more effiecently - less number of itterations. This is most important in dealing with HUGE archives.  I also add comment to brief the code.  Fits for WIN users.
function unzip($dir,$file) {
  $zip = zip_open($dir.$file.".zip"))
  if ($zip) {
    mkdir($dir.$file);
    while ($zip_entry = zip_read($zip)) {
      if (zip_entry_open($zip,$zip_entry,"r")) {
        $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
        $hostDir = dirname(zip_entry_name($zip_entry));

              /*  for root "." directory nothing to be done coase root directory was
                  created before the while-loop statement */
        if ($hostDir != ".") {
          $absPathToHostDir = $dir.$file."\\";
         
              /* Convrerts path string upon to FMS & OS-WIN configuration */
          foreach ( explode("/",$hostDir) as $k)
            $absPathToHostDir = $absPathToHostDir . $k . "\\";
          $absPathToHostDir = substr($absPathToHostDir,0,-1);
          
          if (is_file($absPathToHostDir))
            unlink($absPathToHostDir);

          if (!is_dir($absPathToHostDir))
            mkdir($absPathToHostDir);

              /* Stores Archive entries BOTH as file: Directories & Files;
                 for this porpose we need these 2 hereabove [IF] checks  */
          $fp=fopen($dir.$file."\\".zip_entry_name($zip_entry),"w");
          fwrite($fp,$buf);
          fclose($fp);
          zip_entry_close($zip_entry);
        }
      }
      else  {
          echo "unable open - ";
          return false;
      }
    }  // while-loop end
   
    zip_close($zip);
  }
  else
     return false;

  return true;
}
schore at NOSPAM dot hotmail dot com
13-Dec-2004 06:55
I have had problems with the function of kristiankjaer to unpack zipfiles within any directories.
So I wrote a little extension.

<?php
function unpackZip($dir,$file) {
   if ($zip = zip_open($dir.$file.".zip")) {
     if ($zip) {
       mkdir($dir.$file);
       while ($zip_entry = zip_read($zip)) {
         if (zip_entry_open($zip,$zip_entry,"r")) {
           $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
            $dir_name = dirname(zip_entry_name($zip_entry));
           if ($dir_name != ".") {
             $dir_op = $dir.$file."/";
               foreach ( explode("/",$dir_name) as $k) {
                  $dir_op = $dir_op . $k;
                  if (is_file($dir_op)) unlink($dir_op);
                  if (!is_dir($dir_op)) mkdir($dir_op);
                  $dir_op = $dir_op . "/" ;
                  }
               }
           $fp=fopen($dir.$file."/".zip_entry_name($zip_entry),"w");
           fwrite($fp,$buf);
           zip_entry_close($zip_entry);
       } else
           return false;
       }
       zip_close($zip);
     }
  } else
     return false;

  return true;
}
?>
kristiankjaer AT gmail DOT com
06-Dec-2004 12:06
Here is a function if all you need is to unpack an archive:

function unpackZip($dir,$file) {
    $root=$_SERVER['DOCUMENT_ROOT'];

    if ($zip = zip_open($root.$dir.$file.".zip")) {
      if ($zip) {
        mkdir(".".$dir.$file);
        while ($zip_entry = zip_read($zip)) {
          if (zip_entry_open($zip,$zip_entry,"r")) {
            $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
            $fp=fopen(".".$dir.$file."/".zip_entry_name($zip_entry),"w");
            fwrite($fp,$buf);
            zip_entry_close($zip_entry);
        } else
            return false;
        }
        zip_close($zip);
      }
  } else
      return false;

  return true;
}
01-Jul-2004 12:40
PKZipfiles (or Winzip files) can be easily created by using my Ziplib class, can be found on http://sourceforge.net/projects/phpziplib . All it requires is PHP to be compiled with zlib, and support for classes(don't know when they've been added, but I think with PHP4 you're safe).
php at isaacschlueter dot com
23-Jun-2004 11:15
If you don't have the --with-zip=DIR compile option and can't change it, but you do have --with-pear, then you can use the pear Archive_Zip class available at http://cvs.php.net/pear/Archive_Zip/

As of 2004-06-23, the class isn't packaged and auto-documented yet, but like all pear classes, the comments are extremely verbose and helpful, and you can download the php file as a standalone.  Just include the Zip.php in your project, and you can use the class.
krishnendu at spymac dot com
31-May-2004 08:28
If you want to unzip an password protected file with php..try the following command....it works in Unix/Apache environment...I haven't tested in any other environment...

system("`which unzip` -P Password $zipfile -d $des",$ret_val)

Where $zipfile is the path to the .zip to be unzipped and $des is path to the destination directory.....here both absolute and relative path to the script (which contains this system command) will work...

if everything runs well...file should be unzipped at the $des directory..and you will get 0 value for $ret_val , which means success(info-zip.org)

Regards
Krishnendu
postmaster at alishomepage dot com
24-Jan-2004 11:28
I have written an OpenSource ZIP2FTP interface, which actually takes a given ZIP file and decompresses it in the folder on an FTP server you specify...

Therefore it may be quite interesting for you people interested in ZIP, its adress is http://zip2ftp.alishomepage.com ; those who directly want the source may visit http://zip2ftp.alishomepage.com/?do=getSource
Hannes Gassert
02-Dec-2003 05:53
As of lately this extension has moved to PECL. You find it at it's new home at http://pecl.php.net/package/zip.
`pear install http://pecl.php.net/get/zip-1.0.tgz ` installs it, use dl('zip.so'); to load it after successful installation.
master_auer at web dot de
17-Nov-2003 12:49
Hey guys, maybe you should check this out:
http://www.phpconcept.net/pclzip/index.en.php

A complete library to write and read ZIP files. The only requirement is zLib.

Hope I could help

Regards
Manuel
vbwebprofi at gmx dot de
13-Nov-2003 05:05
For more informations about the ZIP-format visit this document :

http://www.pkware.com/products/enterprise/white_papers/appnote.html

So you be able to write your own ZIP and UNZIP code ... ;o)

Regards

Holger
Joris P.
04-Sep-2003 04:36
"If you just want to unzip everything of a zip file in a directory"

Watch out with that function, your fopen function uses 'r' instead of 'rb' and the fwrite does not include a filesize. So if you have binary files into that zip file (what you probably do), it will go wrong...
phpContrib (A T) esurfers d o t c o m
18-Jul-2003 09:41
Sometimes you may not be able to install the necessary resources to run the ZIP lib. Maybe because you have no control of the server, or maybe because you cannot find the correct libraries for your php...

Anyway do not despair, there is another solution!

I was in this situation (my client could not install it on the server) so I developed a small libraryin pure PHP that is compatible with PHP's own lib but uses the commandline 'unzip' command directly form PHP. You can configure it to use any commandline unzipping tool (so it should work even with other compressed files, as long as there is a commandline tool). It should work on most platforms with an unzip command (Win32 included) although I have tested only under unix.

What it does exactly, is replacing all the functions of the Zip library with equivalent ones. So the example in this page will work (just rename every zip_... function m_zip_...):

<?php

$zip =m_zip_open("/tmp/test2.zip");

if ($zip) {

    while ($zip_entry = m_zip_read($zip)) {
        echo "Name:               " . m_zip_entry_name($zip_entry) . "\n";
        echo "Actual Filesize:    " . m_zip_entry_filesize($zip_entry) . "\n";
        echo "Compressed Size:    " . m_zip_entry_compressedsize($zip_entry) . "\n";
        echo "Compression Method: " . m_zip_entry_compressionmethod($zip_entry) . "\n";

        if (m_zip_entry_open($zip, $zip_entry, "r")) {
            echo "File Contents:\n";
            $buf = m_zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
            echo "$buf\n";

            m_zip_entry_close($zip_entry);
        }
        echo "\n";

    }

    m_zip_close($zip);

}

?>

The library will create a new folder and call unzip on the file when you call m_zip_open().
It will get rid of all the unzipped things when you call m_zip_close().
It will walk the directory structure of the ZIP file as you call m_zip_read($zip) getting into directories and then out again.
Then you will be able to read chunks of (or th whole) files with m_zip_entry_read()

: : :   INCOMPATIBILITIES  : : :
Once the zipfile is unzipped, I will have no way to know the size of the entries or the compression methods, so the functions m_zip_entry_compressedsize() and m_zip_entry_compressionmethod() just return a '?'.

Of course what zipfiles will be compatible and what not will dependo on the command line tool you choose to use.

: : :   CONFIGURATION  : : :
There are two things to setup:

A path to a directory where we can create subfolders and unzip things:

define('UNZIP_DIR','/data/fandango/html/update/unzipped/');

The command to invoke to unzip the files:

define('UNZIP_CMD','unzip -o @_SRC_@ -x -d @_DST_@');

DO NOT REMOVE THE @_SRC_@ and @ _DST_@ markers. This is where the library will put the source file name you pass and the destination subfolder (it will create a subfolder of UNZIP_DIR and pass that)

: : :   DOWNLOAD  : : :
You will find the library and a demo file (with the example on this page) at http://esurfers.com/m-zip/
travis
17-Jun-2003 05:06
just a not of caution--using the dynamic zip class mentioned earlier seems to cause issues with high ascii characters (their values are not preserved correctly, and the file will not unzip)
NOSP at M dot patrick_allaert(AROBAS)pandora dot be
08-Apr-2003 05:08
If you just want to unzip everything of a zip file in a directory (and create unexisting directories), let's try this:

function unzip($file, $path) {
  $zip = zip_open($file);
  if ($zip) {
    while ($zip_entry = zip_read($zip)) {
      if (zip_entry_filesize($zip_entry) > 0) {
        // str_replace must be used under windows to convert "/" into "\"
        $complete_path = $path.str_replace('/','\\',dirname(zip_entry_name($zip_entry)));
        $complete_name = $path.str_replace ('/','\\',zip_entry_name($zip_entry));
        if(!file_exists($complete_path)) {
          $tmp = '';
          foreach(explode('\\',$complete_path) AS $k) {
            $tmp .= $k.'\\';
            if(!file_exists($tmp)) {
              mkdir($tmp, 0777);
            }
          }
        }
        if (zip_entry_open($zip, $zip_entry, "r")) {
          $fd = fopen($complete_name, 'w');
          fwrite($fd, zip_entry_read($zip_entry, zip_entry_filesize($zip_entry)));
          fclose($fd);
          zip_entry_close($zip_entry);
        }
      }
    }
    zip_close($zip);
  }
}

To use this function:
unzip('c:\\file.zip','c:\\temp\\'); // BE CAREFULL: second argument *MUST* finish by a "\" ! ("/" under *nix)

Patrick
chris
23-Mar-2003 06:32
Watch out with archives that contain subfolders if you're using the zip functions to extract archives to actual files.  Let's say you're trying to extract foldername/filename.txt from the archive.  You can't fopen a directory that doesn't exist, so you'll have to check for the existance of directory foldername and create it if it isn't found, then fopen foldername/filename.txt and begin writing to that.
ottawasixtyseven at hotmail dot com
29-Oct-2002 08:04
WOW ... after weeks and weeks of research I thought I'd make somebody elses life a little easier. If you're wondering how to make PHP 4.2.3 read windows zip files (winzip, pkzip, etc) do this:

NOTE: THIS IS FOR WINDOWS SERVERS NOT LINUX OR OTHER. You need zziplib for Linux. http://zziplib.sourceforge.net/

ON PHP WINDOWS SERVER

1) Grab the php_zip.dll from the extensions dir in php-4.3.0pre2-Win32.zip

2) Add a line extension=php_zip.dll to your php.ini

3) Restart your web server

php_zip.dll obviously works on PHP 4.3.0pre2 but you can't run Zend Optimizer on PHP 4.3 (yet). You can run Zend Optimizer on PHP 4.2.3 but it doesn't ship with php_zip.dll. The php_zip.dll that ships with PHP 4.3.0pre2 may even work with older version but I haven't tested that.

For documentation on how to use the zip functions (not the gzip functions that are documented on the php site) go here:

http://zziplib.sourceforge.net/zziplib.html

Newbie Von Greenhorn
a1cypher at shaw dot ca
11-Oct-2002 12:28
For creating zip files, I highly suggest that you have a look at the class used in phpMyAdmin.  It makes it very easy to do and it appears to be opensource.
bermi[arroba]akelos.com
04-Oct-2002 01:27
Here is a link to a class for creating and reading zip files
http://www.phpconcept.net/pclzip/
guidod at gmx dot de
16-Apr-2002 06:22
- look at - http://zipios.sf.net -
it is a C++ class that can also write zip files.
it is modelled after the resp. java interface.

Please also note that I (Guido Draheim) can not
answer questions on compiling zziplib-support
into php, I did not add it, and I do not know
anything about the php module interface. If you
find bugs or have suggestions for more features
then I would be pleased to hear about it. TIA, guido
fbiggun at hotmail dot com
03-Jan-2002 09:29
Check out these pages on the Zend Web Site. The author of the zipfile class explains how his class runs!

Have fun ;)

http://www.zend.com/zend/spotlight/creating-zip-files1.php
http://www.zend.com/zend/spotlight/creating-zip-files2.php
http://www.zend.com/zend/spotlight/creating-zip-files3.php
vangoethem at hotmail dot com
28-Dec-2001 07:51
If you are looking for a way to create ZIP files dynamically in PHP, you should look at the wonderful zipfile class.
It seems there is no official page for this class. You may get it by retrieving the zip.lib.php from the PhpMyAdmin 2.5.2:
http://www.phpmyadmin.net/
add a note add a note

zip_close> <ZipArchive::unchangeName
Last updated: Fri, 19 Jun 2009
 
 
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