Zip File Functions (Read Only Access)

add a note User Contributed Notes

max at centdessin dot com
19-Oct-2006 03:19


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
18-Oct-2006 03:14


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 11:39


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 10:46


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 05:35


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 07:33


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
12-May-2006 01:27


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 10:23


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 10:06


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 09:12


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 12:33


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 11:52


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 10:52


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 12:54


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
07-Jan-2005 12:19


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
14-Dec-2004 02:55


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 08:06


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 08:40


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
24-Jun-2004 07:15


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 04:28


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 07:28


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 01:53


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 08:49


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 01:05


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.
05-Sep-2003 12:36


"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
19-Jul-2003 05:41


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
18-Jun-2003 01:06


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
09-Apr-2003 01:08


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 02:32


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
30-Oct-2002 04:04


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 08:28


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 09:27


Here is a link to a class for creating and reading zip files

http://www.phpconcept.net/pclzip/

guidod at gmx dot de
17-Apr-2002 02:22


- 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
04-Jan-2002 05:29


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 03:51


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

CLXIII. Zip File Functions (Read Only Access)

简介

需求

安装

运行时配置

资源类型

预定义常量

范例